Too many people conflate the evils of corporatism and corruption with the general concept of "capitalism"/a market economy.
Now, I'm hardly an advocate of laissez-faire economics. But I'm not a full-on socialist either. I think the majority of problems people attribute to modern market economies can be corrected with aggressive anti-trust and pro-consumer regulation.
(The keyword here is majority. I'm sure it makes sense to socialize some things, but those details are best left to people smarter than me.)
Yup they're always going to be greedy people trying to figure out new ways to exploit the system they're in. The complaints of capitalism are understandable though since it's seems the power balance has shifted too far to the side of corporations and businesses.