The common answer would be that AI capable of "human factors" is considered unholy and is forbidden by the dominant religious groups ...

Let's go the opposite way. We need no religion or religious groups at all, we just need the honor culture (which can be anywhere in terms of religion, including entirely atheistic). This was the dominant culture in America for the Founding Fathers. Duels to the death over lies or broken contracts were legal and went unpunished.

Most of that is dead, but it was not long ago, in America, that "false advertising" was against the law. Supposedly it still is, but hardly ever enforced, e.g. Papa John Pizza was sued over their "Better Ingredients" ad claim because it was proven they got their ingredients from the exact same suppliers as everybody else. Papa John's claimed it was, basically normal advertising hyperbole.

Take elements of the Honor culture to an extreme in your world: Promising anybody anything in an ad that was not provably true is considered a crime, both legally and culturally. It is attempted fraud. A company could be sued and shunned for a promise of "The best barbecue you've ever had!" or "meet your soulmate!" because these are not provable claims.

Advertising is legal, but Zero Hype Advertising is all that is allowed. Zero lies. Zero promises that are not explicitly laid out in a legal document. No fakery or loopholes on the guarantee or warranty, it must be plain language and clear and interpretable without a lawyer. And there is no such thing as a "no refunds" sale; if fraud is discovered, or omitted information, the seller can be liable.

Ads say this is the product, this is what it does, if you want to hear more this is our contact information, the warranty is available here.

And the current trend of data mining? The hell with that, it is the equivalent of spying on consumers. Using computers to infer what people might want to buy is an invasion of their privacy, tantamount to stalking!

Hell, you don't even have a right to take pictures of strangers in public without their permission in writing, that is also an invasion of their privacy; where they were and what they were doing.

Yeah, we can develop AI for scientific purposes to our heart's content, as long as it has nothing at all to do with people's privacy, and advertising is by law strictly truthful and without hype.

Search engines could still exist; if a consumer wants to find a left-handed recliner, a search engine can point you toward a supplier. They just wouldn't be able to run targeted ads based on your demographics or search history, because that is private information and only you have the right to release it on an individual basis to others. Maybe you have to subscribe to the search engine and pay for the service, a penny a search, but they still cannot keep a history of your searches (you can) or use your demographic information or search history to target you for ads.

Dating sites could still exist; but the users are constrained by the same laws: If they are advertising themselves, they must be truthful and stick to the facts.

Publicly lying or attempting to mislead others is prohibited, hyperbole is prohibited, all these are considered an attempted crime of fraud.

Invasion of somebody's privacy is illegal, it is illegal to gather data on strangers without their written permission on paper, online "signing" is too easy to fake and not permission.

For certain professionals like medical or legal services, using gathered demographic information for any purpose other than serving that customer is illegal; selling it is illegal, using customer information to target customers in any way other than within the strict bounds of your profession is illegal.

But computers are fine! Remember, computers began as scientific tools that had nothing to do with demographics. They were used to compute missile trajectories in WWII, used as switching stations for computers, used for scientific computation for decades before that. When IBM was founded, computers were used for accounting, and census taking by the government (no private information sold, just counting and statistics). When I was a teen, the first video games like Pong came out, but zero use in advertising.

So computer games are fine, scientific simulations are fine, computer accounting is fine (as long as customer information is protected), spreadsheets are fine, etc. All the things that initially sparked the computer revolution in the USA are present. The Internet is still fine, but different and a little more difficult to commercialize.

Amazon and Facebook and Google probably would not exist, or would be small companies. The cultural privacy obsession and strict rules of advertising would just about cripple their business model, and ultimately they'd have some responsibility and liability for any ads they run. There are no loopholes here; they can't entirely push the liability down to their fly-by-night customers, because they chose to run those ads.

And the same thing goes for politicians: Lying to get elected is a criminal offense; including both lies about yourself and lies about your opponents. There are only two choices: Tell the truth, or refuse to answer.

The world you want is entirely possible without AI looking at "human factors", the culture itself prohibits that. But AI can be focused on the original intent of computers, in the 1950's up to the 1970's. Scientific pursuits. Communications are still a thing, we can have smart phones, we can have personal computers. Spreadsheets, writing applications like Word, computer games, accounting software, tax software.

And AI that control power plants, fusion engines, satellites and space craft, all of that. Robotics is fine. Automated plants to build cars or fry potato chips are fine. But personal information and privacy, that's a thing in your world, and it is not going away.