In Binance's commission rebate, the invitee may perceive that the inviter taking 20% is "unfair" (even though this is the exchange's incentive mechanism), and thus would rather forgo 80% of the earnings than accept the inviter "gaining an advantage".

The invitee refuses to participate because they feel that the inviter taking 20% is "unfair", even though they can earn 80%. This leads to irrational decision-making (forfeiting earnings to avoid "unfairness").

Rebates are not a zero-sum game (one party's gain does not necessarily result in another party's loss). In rebates, 80% and 20% are additional incentives provided by the exchange, but the invitee may misunderstand it as a zero-sum game, believing that the inviter's 20% is being "taken away" from them.

One can only say that your perspective is not broad enough!

You think that by not letting me earn money, you will end up losing even more.