Mechanical turk is abusive. It bypasses the laws that were designed to protect the most vulnerable, and it will take some time for new laws to catch up that can regulate operations like mechanical turk. Just because new services and start ups have out maneuvered the law making system does not make those services ethical. "Workers relying on such low wages and unstable employment are not likely to be able to educate t…
It's not as though Amazon is going and pointing a gun at people's heads and telling them to Turk or die. If it's a bad trade for people to exchange their time for the low wage, they shouldn't take it.
They may have little choice. You don't seem to understand what it means to be broke and unskilled.