That's the beauty of the free market. Farmers are paid to put food in someone's (your?) belly: it is not their job to care on whether that's the best choice for you. And yet, they make my life a whole lot better.

I've noticed that the most lucrative jobs are seldom "alertable" public postings. And even if they are publicly posted, submitting my resume through a jobs-portal has an extremely low chance of producing an interview. The best ROI for my time has always come from responding to recruiters who message me with a comp range that fits my expectations.