People will remember whether you taught them or used them.

Years later the details go and the category stays. People forget what the project was and remember whether being around you made them more capable or just saved you time. Using somebody is efficient on the day and expensive over a decade, because they tell others, and because they stop offering. Teaching is slower and it buys you a reputation you cannot get any other way.

In any group where you are the one who knows how, let the next person do the thing while you watch. It costs you twenty minutes on a Tuesday. It changes how you get described in rooms you are not in.