Well, beyond this white guilt you've expressed, how do you contribute to lifting up the souls of the oppressed?
To be honest, I feel it's somewhat racist office behavior to speak in a dialect - here, tagalog - so that I am outside the conversation. As far as exploiting filipinosiin the ways you've described, I don't share your guilt. But how do I get my colleagues to speak English in front of the students and in front of me?
i contribute by avoiding being a twat just to give my stupid ignorance a brave face.
as far as other languages dominating outside the classroom, or everywhere, what does that matter? maybe they don't want to talk to you.
I learned about mental masturbation my first year in Mexico, tune out and tune in .. to your very own station. When you hear them shout, hey gringo, you put your station on mute and attend to them, then back to your thoughts. It's good for the soul.