Good point, but hard to pull off.
On one hand for me, personally (I suck at selling, myself included) and on another hand it's a bad time for that (just relocated to a new country, don't speak the language yet, left most of my 'network' behind).
You're making sense, I just fail to see a way to follow your advice right now.
I started originally by reaching out to people starting a small business, and others from my (physical) social network reached out to me in turn. Put yourself out there.