According to what I've seen from vloggers (I just watched it today), it seems that Kai Sotto and Mikey Williams were the ones who pushed for a substantial salary. Apparently, Sotto's camp requested $400,000 to have him play in the Asian Cup, which does seem like a hefty sum, but it might align with Kai's current market value.
Nevertheless, what's in the past is in the past, and perhaps the SBP might find itself compelled to offer him that amount or even more once he makes his way into the NBA. However, as of now, he's still lagging behind some of the taller players in the NBA, like Wemby and Chet, so it's uncertain if he stands a good chance in the draft.
If we convert that into Philippine Peso, it is more than 20 million Php, though hefty but i think SBP can afford that amount but the thing here is that the players involved prioritize money rather than serving the nation first.
Some people disagree with Al Chua's revelation on the two players asking too much money but I think it is justified in the sense that they lack players and it is not business, it is for the nation so if we are called then accept without doubting, or asking something in return as money will flow into the pocket in due time.
Have also read an article that the other player might face a silent ban as a consequence of his action.