You've got to get out of the mentality that winning is the goal. Single player always lines up the gold medals and anything other than a win against AI feels shallow. Racing online isn't about winning (for me) but for the great clean battles you can find against other intelligent players.
Concentrate on the longer races as the sprint races (and first few laps of longer races) are often chaotic. That can be fun as well, yet is often very messy at the lower ranks.
I feel similar. I think PD have done a poor job of incentivizing Sport mode.
14 clean races in a row? Great just have to start at the back and cruise for 14 consecutive races. 91 wins? If I don't start in the top 3, may as well quit to lower my rating to have a better shot next time. Get my DR up? So I can see higher numbers in FiA, big deal.
The racing in itself might be reward enough if it weren't for too many missteps like wrist slaps for idiotic drivers and an unconvinced physics model.
I wonder what the game would have looked like if it was more geared to clean overtaking.
Instead of wins: Total number of contact free races.
Instead of pole positions:: Total number of contact free position losses (neither off track)
Instead of fastest laps: Total number of contact free overtakes (neither off track)
Instead of consecutive clean races: Total number of days at SR.S
Perhaps what would have been more incentive to race clean and tanking your ratings won't help you achieve any of that, yet it should happen organically by racing clean.
As it is now:
For wins: Tank SR/DR, drive dirty, easy win.
For poles: Tank SR/DR, qualify for an hour, get pole, if no win, quit to tank DR/SR.
For fastest laps: Cut the track where beneficial as the time penalties don't count towards your lap time.
For consecutive clean races: Hang back, which tanks DR for the other achievements, quit the race if you make a mistake (preserves the clean streak)
As you see, all those achievements mean nothing, can easily be gamed, and encourage dirty driving.