There are some cases where it actually is perfectly ok to extract value from a business before winding it down. But that doesn't mean that all of a sudden anybody with an MBA degree is some sort of ruthless capitalist.
I got an MBA because I wanted to learn more about business, network, and hopefully adjust my own personal career path.
I can say for Fisher (Ohio State) we spent a lot of time focusing on not just great ways to make money or improve a business, but on people too. At least that was my experience. I'd guess if you spend a lot of time around "ruthless MBAs" you should take a look at what universities they're coming from and see if they have anything in common.
That’s the main problem I have with MBA sentiment here. Somehow knowing about something is bad. That’s a very naive viewpoint.