Not villainizing anyone. But corporations are capable of more harm on their own than greedy individuals simply because they are well organized groups of people working in concert towards their goals. L'union fait la force and all... and often that union is used to shift responsibility from the individual.
It goes without saying that they are also capable of more good, too.
By your logic, then, governments can do far more harm than can corporations, and it just boils down to whose interests you prefer: those of business or those of government. I, for one, prefer business.
Why would you rather trust a business, whose main interest is to make money, than a government, whose main interest is to serve the people it governs?
When businesses make money, they help me. Government doesn't, for the most part.
And by "for the most part" I mean everything other than roads, cops, and the military.