Has Another Player’s PC “ruined” the Tone of a Game for you?

[zinycor]

I’ve played on multiple AL tables and a couple of long running printed campaigns.
(...)

Am I some sort of role playing snob or stick in the mud?

As Tanari said, the problem in good part might be that you are playing on AL groups and printed adventures.

In my experience, if you want a game that fits your wants better you should join/create a new game, on a fitting setting, with all players buying into the idea from the beggining.

It can be long process, but if you manage, it can be the experience of a lifetime.