I think that... sports are just not something that can be easily measured. The standards are always going to change.
Because sports, by their nature, are artificial. They have rules and such.
Take the rules you have in combat sports.
But if it was a street fight, it would only matter who is standing at the end of the fight. Methods, weapons, doping, doesn't matter.
They might win do to superior strength, training, technique, or just plain luck depending on circumstances.
Sports try to create rules to limit the nature of the competition, and try to give a sense of "fairness". Which is ultimately illusory since the rules will always favor someone who is best suited to work within their framework.
Sometimes it can feel arbitrary too. Like... someone who focus on nutrition, eating right, building their body properly, will have a major advantage over someone who doesn't, possibly even if that person trained more in their life or has a genetic advantage.
Heck, even for two people who were totally equal, nutrition could make or break the match even that day, if one person ate a healthy breakfast giving them energy and the other one skipped it.
No one would ever call that unfair.
I don't think doping is something to allow. But if it were, that might not be totally bad. The ideas of sports and competition are going to keep getting questioned and changing, and I don't think that's a bad thing.
Don't meant to pick on Nachtmahr but if I could make a couple devil's advocate-ish statements...
Maybe you've practiced 16 hours a day all your life, but then someone shows up who's been half as dedicated but still beats you.. That's life.
And hey, maybe you treated your body like a temple with no unnatural additives, and then someone who juiced up on drugs shows up and beats you. Also life.
To me, the point of sports is to find the best, most dedicated, most fit person or people within a certain group of athletes. As citizens, we're all created equal, but as individuals we're not. Some people are just better at some things, and one person gets to be the best.
Some would say it's to drive and push human limits. Not to find the best human, but to see just how good humans can get. It's not "by any means necessary" yet, but maybe it should be?
I mean... the most dedicated... what if dedication includes pushing yourself at any cost, seeking any advantage? Being willing even to overcome your natural weaknesses through whatever substances you can get your hands on, even if it kills you?
Maybe not something to encourage, but it all comes down to the subjective values of human culture, which are always changing.