That out of the way, here is my main point:
To lose is to win. The Buddha teaches that what we do not control, and what leads to affliction, is not self. For example:
Thus, if another philosophy, religion, science or otherwise sought to prove that we do have a self, they'd have to demonstrate that we have the ability to say "let my form/feeling/perception/volitional formations/consciousness be thus." and that these things will no longer lead to affliction.“Bhikkhus, form is nonself. For if, bhikkhus, form were self, this form would not lead to affliction, and it would be possible to have it of form: ‘Let my form be thus; let my form not be thus.’ But because form is nonself, form leads to affliction, and it is not possible to have it of form: ‘Let my form be thus; let my form not be thus.’
“Feeling is nonself…. … Perception is nonself…. Volitional formations are nonself…. Consciousness is nonself. For if, bhikkhus, consciousness were self, this consciousness would not lead to affliction, and it would be possible to have it of consciousness: ‘Let my consciousness be thus; let my consciousness not be thus.’ But because consciousness is nonself, consciousness leads to affliction, and it is not possible to have it of consciousness: ‘Let my consciousness be thus; let my consciousness not be thus.’
-SN 22.59
They'd have to demonstrate that you are extremely powerful, essentially. Thus, if one were to lose an argument in this arena, one would win near omnipotence over their life. So, while subjective idealists or the-objective-doesn't-existists would suffer defeat at having to admit an objective world that they cannot control, and gain nothing in their defeat, Buddhists get to say "Great, you've proven I am nearly omnipotent and therefore I can stop all affliction! Thank you so much, what a relief!"
While soul believers and god believers would have to admit a great loss at someone disproving soul or god, and gain nothing, Buddhists get to celebrate if they are defeated.
So, Buddhism is perfect. There is no self, here's how to follow the most perfect thing in the world: the eightfold path to peace. Not self is the perfect antidote and path to the end of suffering. If this is wrong, then even better! Please prove I have a self! I want to be omnipotent! Winning is to accept not self and live in perfect peace on the path to nibbana, losing is to live with near omnipotence.
Are there any other philosophies or religions where
1.) if their position is correct that's a good thing, and
2.) if they're wrong, also good?
I can think of a couple that meet requirement two, but none that meet the former. Are there any others that meet both requirements? Where proving them is good, and disproving them also good?