Nah.
Rappers are nowhere near as paid as they were in the 90's.
The music business itself is 65-70 percent less profitable today. Which is why all the labels started shifting over to only offering 360 deals. Which actually made the current rappers broker and way more in debt. There aren't any more of the contract incentives that you used to get in the 90's or even early 00's. Today, once you sign, you're basically automatically in debt. Some labels will even give you an extra credit line or loan to fund your image and "operating costs", but all of that has to come back to them. You're fronted whatever paper you may need to get your album done, and if you're lucky, you'll be able to do that without dipping back to the label for more paper.
Sales are basically nonexistent today. They had to switch the entire system to accommodate a new streaming format, that pays pennies on the dollar for every play. Back in the 90's, labels were seeing $15M-$25M cash for every 800,000-1,000,000 units sold for a physical album (CD's, cassettes, vinyl, etc.). That would usually net an artist with a 1/2 decent deal, around $225K of that, before taxes. But they would still own their publishing and bread made from shows and merchandise. Streams do not pay what a physical product pays.
In today's market, the label is taking a majority of ALL the bread an artist makes, until the artist recoups their advance and whatever else the label has covered. So artists are literally working 90% of the time now, to get out of debt. You're afforded the appearance of looking rich, but the books are going to show that their paper is mostly going right back to the parent company. Labels today are taking most of the money from the merchandise, the shows, any appearances you do on TV or films, and most of them won't even sign you today unless you forfeit your publishing rights. The labels all lost so much money once content started going digital. They needed to come up with a way to take less losses, while also being able to push out product. That opportunity is now being covered by the artists, who make incredibly less today, for the benefit of more exposure.