Well, I might agree it may be difficult, but if you have the freakishly and exclusive physical attributes to be an Olympic Swimmer and you swim and you work hard, then you have a ridiculous opportunity to literally harvest Gold Medals as if they are vegetables.
They have people coming home with Gold Medals who are Backups!! People on the Qualifying swim? You got the backstroke, the side stroke, the freestyle, the relay blah blah blah .....umpteen genre's of swimming that greatly expands gold medal win chances beyond reason....
Wrestling has two categories, Wrestle Greco or Wrestle FS.
To level the playground, maybe they should create some new categories for wrestling....like wrestling with your headgear on backwards, or wrestling with a purple singlet...or wrestling barefoot....Or wrestling in Fight Shorts....of course I'm being sarcastic....my point is this ...Earning one Gold Medal in Wrestling is the equivalent of earning 8 Gold medals in Swimming.