>politics has nothing to do with these decisions, its just greed

Deciding how society should be structured, how resources should be allocated, and what rights people have and the circumstances under which they have them (in this case property rights) is the whole purpose of politics as I understand it.

As an example, let's look at a classic American company like IBM. IBM employs around 281,000 people and has numerous institutional shareholders. Figuring out who owns what, what rights as stakeholders those 281,000 employees have, the processes by which decisions are made, etc. requires an enormous amount of legal machinery — without which the company simply could not exist. The framework in which IBM operates is set down in laws, the laws are put in place by elected officials, and those officials are elected by voters.

The same holds true for abuse of power by corporate elite. Corrupt, greedy behavior is often completely legal; they are simply using the powers granted to them under the law. Thus, the limits on that power are ultimately determined by voters (at least in theory). In a very literal sense u/ASuarezMascareno is right: greed is a political decision. You can't be greedy without the power to take what you want, and for corporations that power ultimately stems from the social contract.