This is easy to say, but it is harder to convince others without showing us your data. Even a small table with anonymized company names and a few columns assessing their security foibles and work life balance would go a long way.

I understand most people will say "this is too much work". The problem is that it is all too easy for someone to say "in my experience, X is correlated with Y" ... but that isn't very believable if the observer didn't even write things down.

I don't like asking for everything to be quantified, but it does seem in this case you probably have the data in your head and just need a nudge to write it down.