Bonzo3legs says

"Tunesmith forgets that the entire Olympics is elitist, as all but a few participators are sponsored by big money"

Well, there is money available, but an athlete has to do very well to get some of that money.
For example, in the UK, top athletes are funded by the National Lottery, but you have to get to a very high standard before you attract any money.

And, what about all those African runners!
There's hardly any money for them until they are good enough to run on the international circuit.

You can enjoy your enjoy your Equestrian Events but don't try to compare the achievements in that elitist sport with achievements in sports that draw its competitors from every country in the world, every colour, every living standard and every shade of colour.