I'm... more hostile about this one. If I'm going to do the lion's share of the work anyway, I'll often go the extra 10%, do it alone, and take full credit.

I've tried your strategy, only for the group to turn something practically publishable into a failing-grade undergraduate report. After that when I got a bad group, I just ask the prof if there's a penalty to go solo (often there is none!). If I estimate the penalty is less bad than my grade with the group, I'll just let them burn. If I get at least a mediocre group, then I try to make the group succeed.

This tactic has served me well in the workplace. If I'm part of an incompetent or lazy team, I move to a new team or do the work myself, and make sure they get no credit. I don't carry these teams forward, neither I nor the company benefits, and them I'm stuck carrying them again on the next job (a quick path to burnout). Pretty quickly I end up working with better colleagues and we can really get stuff done (after all, most people are OK).