“You may never know what results come of your actions, but if you do nothing, there will be no results.”
Do you need to know all the results of your actions in order to make the actions worthwhile?
What if you can never know how many lives your actions touched or who’s life is changed forever? Does that make the action less worthy in some way?
Of course not. Do the work, take the action, make a difference. Results matter, taking action matters more.