Not everyone agrees that a free market is what's best for society. There are always going to be political lobbyists, politicians and voting citizens who opt for more regulation. In fact, I'm personally surprised by how many of my peers seem to favour more communist-like systems.
The other day a friend of mine was watching a Youtube video of a speech given by one of the founding members of the Canadian Action Party
and he, not being canadian, asked me who this guy was. I explained to him what the CAP was all about. Said that while I agree with their Canadian Nationalist views they feel that globalization is a big conspiracy by the corporations in order to rule the world and make everyone their slaves. His response was "well isn't that already true ?"
It seems that a large portion of the public feels that corporations have far too much power and that free market has failed. They want government to further regulate the markets because they would rather have the government control their lives than corporations (they refuse to see that the public gives the corporations their power just as we give the government it's power).
Since I've failed to remain neutral I might as well just add that I am a pro-free-market libertarian and I think it will take a couple of wars before we can claim that the corporations enslave people. I do agree, however, that they get away with too much, but not because of a lack of regulation. It's because money buys justice and politicians. THAT is what that needs to be fixed. Yet many people don't look that deep into it. I can say with assertion that most people that I know in person certainly don't. They see that money = corporations = free market = evil and thus want more regulation.
Oh and it doesn't help matters when every single case of deregulation has resulted in short term economic upheaval while things balance out. Forget about selling long term advantages if it's going to cost people jobs and higher prices in the short term.