For what it's worth, I'm current in a company of 15,000 people. I'm in a department with a couple of hundred professional engineers . Professional Engineers as in the designated professionals on par with doctors and lawyers in a court of law.
Several dozen vape and do so with a professional engineers evaluation of the risks/benefits versus the alternatives. You know, the same people that design high rise skyscrapers, bridges, tunnels etc have evaluated these things.
Funny how no one asks that profession what they think.