If an artist has lasted from old school to new school has he/she changed their music to fit whats popular?

Some Hip Hop artists like Missy Elliot has always been about the dancing and even now her music seems to be able her and her passions as it did when she started out in this industry. Then, there are hip hop artists like LL Cool J. He has been one of the rare Hip Hop Artists to succeed in having more then a few albums come out with fading popularity. He was a big deal for a long time. his first album "Radio" when you look up the lyrics to the songs, seems child like, talking about women with out so much as a mention to her body in a wrong way. The songs like "I Give You More" and "I Want You, are titles where you would expect him to be talking about things, we don't all need to hear about. After looking up the lyrics to those songs, I found nothing offensive about the words or the meanings. I then looked up his most resent album "Todd Smith" which was released in 2006. I looked up the lyrics to two more songs, "Ooh Wee" and "Favorite Flavor". I could see the change dramatically in the way he wrote his songs. They were about womans bodies and sex and things he did not even seem to care about in his old music. This showed me that the hip hop artists that have seemed to last from the transition from old school into new school hip hop could have done so by changing their music for the audience. Again, not writing what they are passionate about and then proving what I had thought in the first place that hip hop has changed over the years into something that is creud and ignorant sounding.