I expect people to move off the path when I'm running, don't you?
Well, not really. If they do, then they are nice but I don't expect anything these days. Don't you think expecting people to move out of your way is a bit pretentious?
I've paid to use the park and nobody should block my running path.
These other people aren't your servants or employees! I'm sure if they knew you paid for it they'd appreciate what you did, but that doesn't mean they're going to obey these rules of yours. Be a bit more considerate!
I'm rich so I can do whatever I want.
Your rules are not the way of the world, you are in your own little rich bubble it seems. People will look out for themselves a lot these days and hardly think of you. You just have to adjust and go with the flow.