There will always be a flaw in the system and its natural for people to look for 'work arounds' to enrich themselves. Again that's ok as far as I'm concerned providing those who do have powerful votes who are currently voting for their own comments try to be better role models to those coming through by at least sharing the votes and not using other people's work as a catalyst to fill there own wallet.
Children mimic their parents and learn through watching those around them I'm sure people do the same here. Who knows? Maybe I'm just old fashioned.