How to deal with a schism in the party, relating to criminal activity?


Myself and 5 friends (one of whom is DM) are playing Warhammer. Increasingly, 3 members want to engage in criminal activities like burglary and robbery, while myself and another party member are scrupulous, honest types, who refuse to turn into common criminals (this is from our character sheet backgrounds, not just our personal opinions).

What’s a good way to reconcile this difference? The way it’s going at the moment, it won’t be long before the 3 wannabe criminals just start leaving me and the other "good" guy alone to go off and burgle some noble’s mansion.

We are all good friends in real life, and are "mature" (late 40s/early 50s), and we can all take a fair bit of ribbing, abuse, joking etc – I don’t think anyone is close to storming out. The problem really is that we spend a lot of each session arguing about what to do.