So the MC on the Maya/Josy path abandon their DIK brothers to work a different job?
And you are severely underestimating the amount of money college in American costs, if the school hasn't been getting their money from Father Maya, and she actually risks immediate expulsion if she can't pay, she's not going to get that money with 3 kids working part time.
And if she's not facing immediate expulsion, the story and this drama is irrelevant.
Personally Maya does nothing for me, in the immortal words of Ivan Drago, if she dies, she dies.