Artto
There are people who are critical of Mother Teresa.
Watch the P&T Bullshit episode called "Holier than Thou" episode (S3E5).
I don't know how solid the facts are in this episode, but I do agree with this point: a lot of people think that Mother Teresa and Gandhi are these perfect, spotless people and it has become taboo to criticise them in any way. Which is stupid.
Definitely. I didn't even find her to be much of a humanitarian, mainly due to the abstinence indoctrination, as though that really works especially in third world countries. Knowledge of condoms and how they work can go along way, religion keeps plenty of useful and scientific things in the dark, and in that way I'm in favor of being critical of religion.
As for Gandhi, he was selfish and inconsiderate, see how his wife died, and the role he had in it, if someone wants evidence.