I Have no idea of who you're talking about but I know a S/S guy like that, who's often in the top10. That's a sign the SR system is being played and not working as it should.
I think the gaming of the SR system simply highlights how bad it is. Without going into detail if I'm chasing you I have several options considering that being behind has no impact on the SR penalty weighting.
1) Race fair and not pass. No gain / loss in track position for either of us. No loss in SR for either of us. (Net draw)
2) Pass cleanly in a corner. I gain track position. No loss in SR for either of us.
(Net win)
3) Barge up the inside using you as a bumper. I gain track position (you will often lose many places / be off track). We both lose SR points.
(Net win)
4) Ram you directly from behind into braking for a corner. I gain track position (you will often lose many places / be off track). We both lose SR points.
(Net win)
5) Get alongside you on a straight, simply ease you off into the grass. I gain track position (you will often lose many places / be off track). No loss in SR for either of us.
(Net win)
6) Tap your rear 1/4 as you are mid slow corner, spinning you out. I gain track position (you will often lose many places / be off track). No loss in SR for me, loss for you.
(Net win)
You see how it goes? If you want to achieve driving as describes in point 1 above, you cannot allow the outcomes that follow in points 2-6 where it is a definite advantage to be behind.
Even a clean driver can save up a full 10 lap race of green SR, then do one totally nasty move on the last corner to take the win and not be penalised at all basically. The net SR is Blue in such a case.
So in the end you're relying on thousands of people of all ages, maturity and ability to race like gentlemen. Yeah, good luck with that model.