I would be very dubious of applying to a security position with any company where the link started http://...
Bricklayers don't avoid un-built houses.
But for most jobs, where you aren't going to be able to affect massive change, you'll want the security culture not to bad/nonexistent.
Because you don't want a man in the middle modifying the job ad to say "must be 7 feet tall to apply"?
And finally because security should be the default unless there is a good reason to do it some other way. It's a bit like having an unpainted car because you're going to drive it in dry places where it won't rust... Unless there is a benefit to an unpainted car, most people take the painted car...