Not only that, but Chamberlain COULD have scored MUCH more in his career. In his 66-67, 67-68, and 68-69 seasons, he basically did what his COACHES asked of him (and yes, it was mostly successful), but even in those years he would occasionally go out and throw up a few huge games (e.g. 52, 53, 53, 58, 60, 66, and 68 point games) just to let everyone know that he still could.
And then, in his 69-70 season, his new COACH asked him to become a scorer again, and he was leading the league in scoring at 32.2 ppg (on a .579 FG%) when he blew out out his knee in the ninth game.
Even after the injury, he would still go out an hang a 30-30 game every so often.
And just watch this footage, taken in the clinching game five of the '72 Finals, when a Chamberlain, with BOTH wrists badly injured, scored 24 points on 10-14 shooting. I think it is pretty clear, that as easily as he was scoring in that game, that he could have had yet another 40 point game.
https://www.youtube.com/watch?v=uvPQV1WHtsU
And, of course, the big one...Chamberlain had to wait FOUR YEARS after High School to play in the NBA. Given the fact that he scored 43 points in his very first NBA game, you can safely assume that he would have probably added at least 8,000+ points to his career totals, had he been able to jump right to the NBA.