Very very few people I hope. There is no economic incentive for companies to invest in secure design/architecture. The costs of building it right almost always lose to other product owner features and timelines.

Until we can actually get incentives aligned, companies will continue to build leaky, poorly designed apps with no layered controls. Yes, someone will jump on me and say "but my company does is right!". Great for you! Share your knowledge! You are a snowflake, and probably fortunate to have ethical leadership! The rest of us are doomed.