Although it's not as if switching to distributed revision control will eliminate politics. It just transforms them and pushes them around. Who owns the mainline of a project? Why won't s/he accept my patches? etc.. etc...
Of course it doesn't eliminate politics, but it cleanly separates technical concerns from political ones. With a centralised version control system, technical problems can have political ramifications ("$LEADER said she'd give me commit access three weeks ago and she still hasn't; sure she claims she's suffered a server crash but I think she just doesn't like me") and vice-versa ("$COMMITTER didn't like $OTHER_COMMITTER's contributions, so they started a revert war").
