Both of those votes were sorta close, with Fielder and Ozzie Smith placing second respectively. Don't know the story on the '91 vote. The Cards were a lot better than the Cubs in '87, but I guess back then you didn't argue with 49 HRs.

Robin Yount did it on a .500 team and the Rockies were barely over 0.500 when Larry Walker won it.

So yeah, doesn't happen very often.