And again, adding or increasing prize money will just throw fuel on the fire. You want to compete more? You have to peak more and recover more. Guess what helps with that. And if you get doping right, you get richer.
Things that might help (but not solve) the issue of doping in sports:
Remove nationalism.
Clean up corruption in the doping system. That includes US and Oz.
Create an independent international doping team, not an individual national system.
Ban for life deliberate dopers. Not borderline cases (e.g. contaminated food/meds, prescribed meds for real health issues, etc) which could continue with suspension periods.
Hit the pockets of sponsors of professional athletes who deliberately dope. If the athlete or fed has to pay a fine to WADA for failed tests, why not hit the guys making all the money here. Nike sponsors an athlete who deliberately dopes? Hit them with a 7 figure fine to help fund the doping process.
Make a bit more of a fuss over athletes who are bumped up after a winner is disqualified after the event. e.g. Valerie Adams having to get a medal ceremony back home in good 'ol NZ after being bumped up when the Belarusian athlete was pinged. At the moment, the IOC does not redo the ceremony and seems to go out of its way to hid the "retarded kid" in the shadows.
OK, prolly none of that will ever happen. But if they were really serious about doping......