Pac had too much love in the streets tho. i doubt they would have turned their back on Pac
Its so easy to take someone's relevance from a short period of time and extrapolate; On the balance of probabilities, an artist will fall off within 10 years. I bet your position would be the same for DMX if he had died in 2000, 50 Cent if he died in 2004, or Ja Rule if he died in 2002, Norah Jones after her back to back diamond albums, Usher after Confessions, Hammer after his diamond album etc When times are great and people are doing extremely well, we tend to think that the situation will last forever but the empirical evidence says otherwise.
Btw, as much as rap is sometimes treated like some competition, the Urban/ hip hop market is big enough that what one artist does will have little bearing on the other artist. In more ways than one, everyone is in their own lane, the incredible Defjam and Interscope runs from 1998 to 2003 are prime example of this - this isn't an Apple, Samsung, Nokia or Blackberry situation.