Yeah! Benefits of small activities do accumulate and compound! One of my favorite exercise is the ballet elevé and relevé. These really can be done anywhere, even in a fully stuffed long-haul plane. Yes they can be huge help!
I’ve actually been doing that in my routine, but for rock climbing instead of ballet! I can finally climb without hurting my toes because they are strong enough to not completely flex back when I put weight on them now.