Is it wrong for me not to contribute to bosses day?

Every year at my firm the assistants (basically everyone who is not an attorney) chip in for a lunch and small gifts to celebrate bosses day. I chipped in last year because I had only been working here about 6 months and I didn’t want to come across badly. The lunch was heavily meat based and I had serious qualms about using my money for an industry I do not support. Assistant also eat the lunch, but I did not.

This year I am thinking about not contributing because I spend my life trying to keep my actions and my dollars from contributing to the exploitation of animals. I guess I’m still somewhat concerned about how this might come across; I am asking this question. But people know me now and might accept or even support me decision.

So what do ya’ll think?

General question.