That is absolutely appalling, but personally I do not feel the need to agree with the politics of the country in order to visit it. I vehemently disagree with the death penalty but still visit the US.
I think the fact that the Maldives is a tourist destination for many Westerners will help bring atrocities like this to public attention and condemnation, which might, just might, help the sitiation in future. Without tourism I doubt anyone would give a crap about what goes on in a set of tiny islands with a tiny population thousands of miles away.