One of the things large & modern societies have consistently failed to emulate is the role that reputation plays(ed) in small communities.
Besides that you have options like:
Most laws and crimes can be simplified massively.
You misrepresented the truth.
You changed the state of life or limb. [damage, kidnap, etc]
You hurt somebody's feelings.
You changed the state of property.[damage, theft etc]
Etc and then the caveats, intent, negligent, in a group, endangered.
Another category of complexities arise from group behavior, the way we apportion blame, responsibility & reward has shaped our social groups. If one changes how the law treats responsibility & reward, behaviors change also.
If every member of a mob was liable for every act of vandalism it commited, I think you'd see different behavior, likewise with corporate mentality. If one member of staff abuses patients for 12 years..how on earth could it be right that the other staff working over that time are not guilty of something.
In other words, people should be made responsible for what goes on around them so that they act responsible for what goes on around them.
Once people have this, laws on truthiness and the misrepresentation of facts that result in guaranteed jailtime, paying-for-plaudits becomes illegal and journalists have to do actual work with actual information instead.. the world gets a lot cleaner.
Signed, your friendly neighborhood fascist.
Beyond that, one can enforce a simplification of language in certain fields.
Let's take Bank Accounts.
A Bank Account is a loan, it's as simple as that. If you loan somebody your car, it's still your car. Likewise if a showroom loans you a car, it's still their car.
If I'm loaned a chisel by my neighbor, he doesn't get to own the living room doorframe that it helps to build. No, that would be silly. Neither does he get to demand that I give him a sparkling new chisel back because his chisel got scratched in normal use. Likewise, if you borrow money from a bank, the native assumption should be that it gets back less than it gives out + some goodwill ;)