Of course, doing something to effect greater change is 'better' than doing something that effects lesser change, but that doesn't invalidate doing the thing that effects lesser change. Lesser change is better than no change.
You grep your codebase of choice for 'him', s/him/them, fire off a pull request, and think "Nice! I really did a lot for the advancement of minorities in tech today!", and then go out for drinks with your mostly white coworkers, where you discuss diversity in the workplace with a straight face.
