In cases where the community votes incorrectly, it seems in my best interests to simply go with the flow and vote for 'the winning team' rather than vote correctly and take a reputation hit. I get the feeling that this 'gaming' the voting system is happening-- maybe not always maliciously, but to save time and boost rep.
So my question using a real example: the Niche Homeopathic Treatment looks set to be accepted by the community at 12 (for)- 2 (against). Even if the remaining 8 votes go against it, it will still pass. However, the Niche Homeopathy is already approved and awaiting purchase. Obviously these 2 are redundant and the former should be rejected, but it would be in my personal best interest to vote for it and receive positive rep. The only reason for me to not game the system and vote against it (besides it being a jerk move and not in the best interest of the community) would be if the reputations are reversed upon Tribunal removal of Homeopathic Treatment, in which case my negative vote would result in positive reputation.