Is this the geriatric Olympians division? This isn't 2008. Cejudo didn't even make the team in 2012 and Cormier didn't wrestle a single match, he washed out. Lombard was an Olympian 16 years ago.
Read that back - you have a 16-years-ago Olympian that can be successful at the highest level of MMA.
Yoel was an Olympian in 2004, 12 years ago.
Other professional sports do not have guys competing on their second or third athletic careers. It just is not possible because the competition is far too high in other professional sports.
All of the fighters I named competed in the Olympics. The fact that they don't meet your standards is a separate issue. There isn't any High School or College MMA. There isn't any MMA in the Olympics, either. So there is no direct correlation between an Olympic career and an MMA career. If a legitimate professional wrestling league existed and they were only managing to sign 'x' amount of Olympic wrestlers, then that would be a problem. The UFC, however, is not a professional wrestling league.
What's your point exactly? Boxing had a man that was dominant in the 1960s and 70s still winning championships well into the 90s. They had a 40-50 year old man beating the likes of Antonio Tarver, Kelly Pavlik, Jean Pascal, Tavoris Cloud, and Winky Wright, all of whom were significantly younger and in their prime. Michael Jordan in his 40s was still successful at the highest level of the NBA. He didn't win anything, of course, due to his team being utter crap, but he was still an All-Star and averaged enough points to put him on par with some current top-tier NBA players. If an athlete shouldn't be able be able to compete on their second or third athletic careers, then the same logic should apply within the same sport after they've aged significantly.
If you add the notation that they are a decade or more outside of their Olympic careers, sure.
That would be
woefully inaccurate. The majority are actually under the 10 year mark. Dan Kelly competed in 2012 (signed 2 years after), Rousey in 2008 (signed 4 years after), Cejudo in 2008 (signed 6 years after), Serrano in 2008 (signed 6 years after), and Bilyal Makhov in 2012 (signed 3 years after). Considering the Summer Olympics only occurs every four years, I think it's fairly common and understandable that you would be a decade or more outside of your Olympics career.
Jon Jones is one of the few truly elite athletes that entered MMA. When you get someone of his caliber, we don't call him the standard, like we do in all other professional sports.
We literally call him the greatest of all time.
He's considered the greatest of all time because he has the record to prove it. Every sport has that athlete who seems to be in a league of his own and can do what virtually no one else can. Jon Jones is one of many elite athletes that have entered MMA. You only consider him to be an 'elite athlete' because you're a physique fetishist. You're certainly not saying it because Jon has the credentials outside of MMA to back it up. Alexander Gutsafsson has neither the credentials nor the body of a so called 'A-level athlete', but yet still beat Jon Jones to a pulp.
Wonderboy Thompson is an elite athlete. Cain Velasquez is an elite athlete. Fabricio Werdum is an elite athlete, specifically a world class BJJ competitor. Alistair Overeem is an elite athlete with world class kickboxing credentials. Khabib Nurmagomedov is an elite athlete. RDA is an elite athlete. Jose Aldo is an elite athlete. Frankie Edgar is an elite athlete. Dominick Cruz is an elite athlete. Mighty Mouse Johnson is an elite athlete. Etc. There are a number of 'elite athletes' in MMA. Quite a few of them defy your stereotypical, Football-centric view of what they're supposed to look like, which is why you overlook them.
That is how bad the risk -vs- reward is in MMA. It only takes one truly elite player to dominant in a way we've never previously seen.
That's a blatant lie. Anderson Silva, GSP, and Fedor were all dominant in their own right, perhaps even more so. Wanderlei Silva and Chuck Liddell were as well.