Without looking it up (I need to dash to work here), it sure seemed like Ron Russell and Al Schack won half the sanctioned tournaments I played in back in the late '90s, in Michigan. Ron could put a Comet or Cyclone anywhere he wanted, plus was perhaps the best putter on the planet.
With there being no money in the sport back then, it's hard to blame someone like him for doing his thing briefly. I remember recently hearing about how Juliana never got 4 figures for any of her worlds wins. You went on tour at your financial peril in those days. Even with today's relative explosion in the pro game, I'm guessing most of the names that aren't top 25 are barely making ends meet out there even now.
Fact, in 1998 (when I joined the PDGA), there were fewer than 10% of serious players than today. The person whose PDGA number is ten times mine joined in like 2020, and a huge bunch have joined since. It was a stark situation compared to today for the very best players of the time.