I like that Rap Coalition website.
Rap has always had its mindless, made for mainstream music. This isn't anything new and despite most "purists" think, it did not start with Puff Daddy. As production became more slick, pop-rap soon resembled boy bands but that doesn't mean that pop-rap did not exist before it. Much of Def Jam's breakout talent got huge because of their pop tracks. "Purists" are so obsessed with the underground that they've picked up a pair of rose colored glasses while they were there.
Gangsta rap is not even halfway legitimate and never was. It was just a new form of made for whitey rebellious music to piss of Mom and Pop. In the 80s, it was hair metal. Then grunge music. Then it moved to rap. Souljah Boy might not rap about the "streets" and I almost consider that a credit. So many rappers today think they are Tony Montana. If they were really legitimate, they would be locked away for manslaughter or murder. It does happen and the rappers get caught. Unsurprisingly, there are only a few that managed to get arrested, which means the other 99.9% are lying. So even though Souljah Boy's lyrics are gibberish, so are most other "gangsta" rappers.
The industry is a vicious place. 50 Cent was smart enough to immediately branch out from the industry. He (correctly) assumed that if he just stuck to rap, he would wind up in the same place he was years ago. It is why he invested in other companies, milked G-Unit as hard as he could, and it paid off. He now has several hundred million dollars and won't have to worry about money again. He didn't sell out or keep it gangsta. No, he kept it smart. It would be humiliating to make a chart topper and then five years live at where they were before, not to keep it real, but because they have no other choice.