You are using one word in different contexts in the same question and expecting one answer for all of them. Is that supposed to be clever? It's not. Here are the answers with the context in quotes:
US Law: Yes all men are created equal.
Biological: No, some people's DNA plays nasty tricks on them.
Soviet Cold War Era: All men are equal but some are more equal than others.
US Society: He with the gold makes the rules. He born to gold is a lucky bastard.
Depending the context there are different answers. You are using light and mirrors to try and prove your point. Good luck with that.
As to the limit of reality, humans certainly don't know the nature of the universe, and probably never will. Maybe in 2 or 3 billion years.
I think that you should get off your high horse, because in truth it's falling over.