For me, being wealthy is relative to your lifestyle. I'll have to refer to Robert Kiyosaki's definition of financial freedom to come up with a criteria to be considered wealthy. 

First is financial freedom - if your passive income (e.g., cashflow that come from sources and that do not require your active participation and time like dividends from stocks) exceeds your expenses, then you're financially free. 

Being wealthy for me is something beyond that - once your basic needs are covered and you have excess cash - you are able to do better things like give back to charity.

For example, me and my family's monthly expenses is close to $1,400. If my passive income, let's say my earnings from my delegations or curations, exceed $1,400 a month, then I consider myself financially free. Earnings beyond that is wealth for me.