Schopenhauer's thought that Will is insatiable, that once satisfied in one form it must be expressed in new desires, is inherited both by Mann and by Aschenbach (it's in Mahler, as well). So life is inevitably incomplete.
In some perfect world where human nature is less messy and history less fraught, any and all people who had ever suffered discrimination would find common cause, gathering together under one big anti-bigotry banner.