Utter shame for Massa. It was great to see him running at the front again, and I was looking forward to another Alonso whinging session.
It's against the regs, so $100k seems a tiny amount if it leads to Ferrari winning the drivers title, with the income that generates.
Having said that, it is a team sport so I'm not sure it should be a big deal. It certainly happens elsewhere (WTC, BTCC) and not just Ferrari in F1 previously (Coulthard/Hakkinen). As for other sports, think Tour De France. Didn't other team mates even have to give up their car for Fangio in the middle of races if his car broke down?!