SJS:
We disagree on whether it is proper to learn and neglect your tuition obligations.
We can disagree on this issue. But we should agree on the premises.
I think there is a personal decision, and a community decision.
The personal decision should be made in accordance with the opinion of your rebbeim. My rebbeim think it is more important to learn.
The community decision should be made by the school in accordance with their rabbis.
If you have made a personal decision which is not the same as your schools decision, if it really bothers you, you can switch schools.