Famously, Google's founding motto was "Don't be evil."
Imagine, if you will, a corporation called FooTec that, while like Google in interests, capabilities, and assets, has chosen a different path. FooTec, having reached the top of the corporate food chain by grudgingly following the rules (and occasionally breaking them within the accepted bounds of tolerance), has decided to "go evil." Specifically, the board has decided that they want to drop all pretenses of morality, idealism, social responsibility etc... and that they will instead seek to obtain as much wealth and power as they can. I'm not merely talking cut-throat business practices... I'm talking overt insurrection against the ruling government and social order for the purpose of taking over all means of production and authority. They want it all, and they are willing to go "all in," leveraging their accumulated wealth and knowledge to get it.
Assume the time and setting is present day America. What are some likely scenarios for FooTec's coup? Where would they start? Could they win? How could they be stopped?