My apologies, let me clarify what I meant in the last post.

Assuming you want to exploit the Reincarnation system to its utmost, each time you reincarnate a character, the lvls that character built up will be stored in a sort of grand total. This total is used to determine how many extra bonus stat points you can attribute to that character in its next life. Thus, bagging 65000+lvls through many reincarnation cycles will grant that character the most points.