Saiyan's correct.
Funny thing is though, it's the musician's own fault in a way, for letting themselves do this.
Want to get signed to a major label? Expect less money for a CD sold, and less artistic freedom, as well as a loss in integrity in many cases. You don't have to sign with the RIAA. There are numerous labels who are not part of that association. The RIAA is an extra unneeded facet of the music industry. Signing with a label that is part of them is a bad idea.
If you are in a metal band, say Sonic Deathjoy Killmonkeys, and you join a label that in part of the RIAA, what are you doing? You are paying money for them to do market research (Would people buy the record more if they changed the name of the band, for instance. Of course, you don't have to let them change the name. But they will do the research anyways, and you are paying for it regardless).
The RIAA :
The Recording Industry Association of America (RIAA) is the trade group that represents the U.S. recording industry. Its mission is to foster a business and legal climate that supports and promotes our members' creative and financial vitality. Its members are the record companies that comprise the most vibrant national music industry in the world. RIAA members create, manufacture and/or distribute approximately 90% of all legitimate sound recordings produced and sold in the United States.
They are a group paid extra, an organization supported by the record labels that lobbies in the government for them, that does marketing research, phones various people to ask their opinion on the material, does focus groups, test audiences, keeps in private communication with other companies (music stores), has large private functions with members of the business organization, and other unneeded things for the most part. It is a business based upon the music an artist makes. A parasitic one that is not necessary, and while it is helpful, for the most part it is unnecessary and unprofitable to the artist himself. Of course, not to the record companies though.
If you want to really do something against the RIAA, just don't buy their music. Don't listen to their radio stations. There are sites that can be found if you look that will tell you if an artist supports the RIAA.
When you are in a store and you see a display for a new Slipknot album, don't buy the album there. Go to a smaller store, with no display, no extra fanfare about it, and buy the album. Purchasing albums from stores with less promotion of the record, as well as less extra costs being spent by that store, will show later on in their market data that the cardboard cutout of slipknot wasn't really useful, and was a waste of money.
The average music buyer has allowed the RIAA to be what they are today, and it is their fault if they suffer from such. They helped create a bloated industry, and let the flies and maggots feed on the refuse that it is. So go ahead and shell out 15$ for a metallica album, spend 40$ on concert tickets, 25$ on a t-shirt. Nevermind that a great band is probably on an independant label with a 10$ album, a 15$ t-shirt, and a 20$ concert ticket at most.
Buy from the group themselves, don't go through middlemen, don't support the RIAA that way, since you want to listen to mudvayne regardless of their choice to sign to an RIAA label.