This is not always true. People have treated mummies and the remains of people declared as saints quite differently than regular people. Occasionally people say we should rebury for the principle of the thing but in general that doesn't seem to happen.
Personally I find the first part, ie respecting peoples remains, as being the critical thing.
I'm gonna have to point out the obvious here, that most mummies and saints weren't regular people to begin with so they continue to be treated as such.
Saints also implies catholic who feel a certain type of way about how remains should be dealt with.
Personally I find the first part, ie respecting peoples remains, as being the critical thing.