You got a point about the clean thing, I forgot that they were looking "white as snow" at first.
For the other things, well, nothing is impossible, being a lot of thing righteous
would not impair your ability to be a pervert (as much as "being a pervert" as meaning),
and also, nothing says that could not be part of rituals or access price to magical groups
and so on. Like an insect shaman impersonating the queen of its hive, "testing"
the more worthy pretenders.
At last, the kind of practice I described was not something necessarily enforced,
but something that some people could have be willing to do.
There are always volunteers to go along with the man/woman in charge based solely onto this
and not him or her being a great person. People tend to mix things easily. And also, power is an aphrodisiac.