It's also used in other contexts, e.g. cash vs. stock compensation (and I wouldn't necessarily call everybody offered that choice "rich" these days).
There’s a huge difference between being rich (or wealthy, not the same) and simply having more than someone else.
> There’s a huge difference between being rich (or wealthy, not the same) and simply having more than someone else.
No. That's basically the definitions of those concepts. They are relative to how well off everybody else is.