We tend to think of being wealthy as a singular state of being: either you're wealthy or you're not.
But there's a big range of wealth. Someone who makes six figures may be financially comfortable, but they'd be better off as a millionaire. Likewise, a seven-figure salary is chump change to someone who's a billionaire. And those who've got it don't always flaunt it.
The r/AskReddit thread, "What quietly screams 'rich/wealthy'" is a real eye-opener.