[bpt3]

I work to make money. My obligation there is to ethically make as much money as possible for my company, myself, and my employees.

I build community/commons/etc. in my personal time (which also includes some overlap since I do have some social relationships with work colleagues).

The amount of money I make at my job allows me dedicate more resources to those efforts, rather than intentionally docking my own pay to benefit some random person who happens to be performing a similar job to me much less effectively and would stand to benefit from being in a union.