Wonky Pundit
USMB's Silent Snowden
That is precisely the principle concept that most separates left (liberal) from right (conservative) these days regardless of the degree of each. The left looks to government to have the sort of society they want. The right trusts the individual to look to their best interests and does not trust the government with that.
Just because an individual knows how to look after their own best interests doesn't mean that they won't try to cheat you at the first opportunity. Any attempt to prevent this by means other than a government has historically failed.
Show me a government that has prevented that and I'll concede that you have a point. Otherise I'll have to point out that you are again missing the point being made here.
How much more human trafficking would there be without any government action against it?