Care to elaborate? How is using iMessage undignified?
It’s just that I’m in a geographical area where blue tick - green tick didn’t become a thing and people use other messaging apps which are better than iMessage by light years; and that’s good.
Anyway, is it possible that OP was pointing to iMessage simply being inferior? And it is inferior, just like pretty much any online service from Apple. And Apple’s recent convoluted u-turn on privacy.
But still, yeah, “dignity” is too strong a term to be used in this context maybe.
Messages and Tact come from the same place in that both aim to just enable people to communicate, without any further sinister or degrading motive.