World's needs? No. Enterprise needs? Sure.

That's not really too true. Security is very important to many people, just that as you move more into the corporate world, 'security' covers more aspects than purely hacker-proof. Unless your business is security, you're often not going to know it was well as someone else whose is, and you become more susceptible to marketing drives and "common knowledge" (which is fed by those who have the money to make what they want know to be "common knowledge").

There is plenty of interest in security, which is why so much /is/ designed with security in mind. But people have to learn, we're not born with the knowledge that we choose to live by or ignore. Most people just want it to be taken care of for them, and will pay, as learning how to secure your website, your computer, your car, your home, your communications... is a bit much for one person. Better to have different people specialise in different areas.