Looking at Ohio's 16 I also see no discrepancies. Each person has played at least 17 events, and the range of points is 120-500! I know most of these folks, and they play a lot of pinball, and win events (Or finish where there's significant points to be gained) as much as possible.
I'm sitting at 72 currently, and it's an accurate reflection of my dedication. I go to weeklies occasionally, participate in 1 or 2 leagues, and run a monthly. That's the extent of my game, and if I want to improve I've gotta play more often, and better! Simple as that.
I still maintain that a cap on SCS while having zero impact on actual results, just like the top 20 card, will motivate the mid and lower ranked folks to improve. Personally I feel like I could improve my card more than my ability to gain at least 150 points total in the state before January.