I think people are severely underrating NBA players
Yao Ming is one of the best centers in the NBA, he is certainly top 5 in the world at his position (Arguably the best). Look at the top Centers in BuzzeBeaters, they are miles ahead of Prominent and Proficients. Yao should be rated similarly to the top centers in BuzzerBeater, Kobe should basically better or equal to the best SG in BuzzerBeater.
Infact in many cases they should be rated higher as Yao and Kobe etc... are at their peak, the best players in BuzzerBeater are like 22 still and haven't reached their peak yet