Ariel and the others have performed fund raising since coming to the Magic University, so they have a considerable amount of money.
But, that is capital for actions hereafter.
The money that each individual can use for themselves is also separate.
Ariel realized that her own and Luke's sense for money was twisted so she put a restriction on it.
"If we've come this far, this is the only thing I have left to grant to you."
"No, I'm very sorry for troubling you, Ariel-sama."
"Fu...as expected of Ariel-sama.