That vid is pretty sad, and just goes to show how screwed up the wrestling lifestyle is. I think Kamala said it best around 5:30. They took advantage of him because he was a poor boy from down South Mississippi. Seems like he's got the IQ of a half tard. 
Yes, wrestling promoters clearly took advantage of Kamala and prevented him from fulfilling his destiny as a Rhodes Scholar.
It's a hard life, but if he'd had better options, he would have taken them.