The problem there is the >90% of people in Vancouver who aren't in high paying tech fields. It's pretty difficult to say "just triple their wages and they'll afford houses no problem."
The real issue is property owners know someone will eventually come along and pay whatever they're asking. If wages were to dramatically increase, they'd never stop and think, "Yeah, I think I'll cap rent at $3000/month because I'm a nice guy." They'll gladly take $4000 if they can and never settle for less once they hit that point. Instead of considering lowering rents, they'll ask why you just don't get paid more.
"Eventually" Looked at three houses a couple of weekends ago, all sold by Monday. Two were unlivable, one nice, but way over budget, all out in the burbs.
The real issue is property owners know someone will eventually come along and pay whatever they're asking. If wages were to dramatically increase, they'd never stop and think, "Yeah, I think I'll cap rent at $3000/month because I'm a nice guy." They'll gladly take $4000 if they can and never settle for less once they hit that point. Instead of considering lowering rents, they'll ask why you just don't get paid more.