The Average Joe rarely has enough capital to start a promising enterprise and when they do manage to, they get bought up by the very same corporations they were trying to compete against.
We’ve reached a point where corpos can just buy out the competition and do whatever they please to it.
And it’s not even a greed issue, really. The system is kill or be killed, a corporation that doesn’t do this sort of shady thing won’t make as much money and will be bought out by others that do.