Indentured servants were sold for economic reasons too you know. Yes slavery got worse as the years went by, but it doesn't mean indentured labour was an Arcadia or that non-Africans had it very much better.
Some people never cleared the debt in their life and it passed on to the next of kin, so in effect your descendents could be slaves.
If I'm not mistaken yes indentured servants were beaten and mutilated and abused.