Yes, I don't think cyclists (or their coaches, sponsors, agents ... ) are any more corrupt by nature than other athletes. The world of running is currently in utter turmoil over Mo/Salazar, the russians, Gatlin, african distance runners that win from nowhere ... etc ... It all kicked off a bit later than cycling (perhaps Lance was an outlier in al this? Discuss!), but it's pretty much caught up.
Cycling and running are the two big-money games where speed/power is much more important than skill/technique; but the ball games are also rife with this stuff. remember all those blood samples from footballers and tennis players?
I suspect doping is inevitable with 21stC biochemistry, TV income and ... well, human nature. Its not worth gnashing our teeth over how our ex-idols are ruining our precious sport, dragging its reputation thru the mud.
Just sit back and enjoy the spectacle!