They're also all likely getting massive payouts. I posted a while back when VW's president stepped down, his payout could have been in the 60million range, iirc.
edit: as far as Toyota, they're no saints either. They've had their scandals: http://www.abc.net.au/news/2014-03-20/toyota-pays-1-3-billion-for-defect-cover-up-statements/5332894