I think the takeaway here is that you can choose to go away if you have the option and the privilege to do so. No one will hold it against you and those who do will be gone around the same time you will, give or take a few years. But you don't leave things in more capable hands. The people you idolize exist and are doing what they're doing irrespective of you. Their motivations are their own, however. There's no guarantee that they are willing to or interested in solving the problems you want to solve or see solved. There's no guarantee they even view them as problems. On this ship I think we can do with all hands on deck, but that is me being optimistic and looking for reasons to hold on just as much as you.