Maybe he is afraid that people who aren't commuting to work every day won't need to buy cars at all.
Principles are fluid just as much as business opportunities.
As a company, your business model defines your morality, not the other way around. Google's fate was sealed the moment they ran their very first sponsored link. And as an individual, your interests define your morality.
What's curious is that in the public consciousness we still speak about it as if morals and principles are this completely independent thing some have, which is impervious to circumstances and opportunities for personal gain. Or maybe those are just the silly tales we tell the mark before we scam them.