Only seventy percent (70%) of Adolfo's earnings from the Prudencians were left, but it was still a huge amount. It would rather greatly boost and hasten the recovery of Prudencia.
They would no longer need to shell out the budget from the Imperial Palace to help Prudencia since the remaining amount from Adolfo's earnings was more than enough to support the Prudencians for years.
If the money wasn't for the Prudencians, Ferdinand would have donated all of it out of pride. Valeria wasn't lacking, and if it does, he could just get the budget from his island back in Estrella.
Thus, they could simply say Valeria didn't need the money since they could give Prudencia all the support they needed.
However, it was money earned from the suffering of Prudencians themselves, so it had to at least reach them after what they went through due to it.