One of the big value-adds for a senior engineer is being able to recognize tasks that just don't need to be done, ever, because they just won't contribute much value relative to other things.
Remember, it's not how much you get done. It's how much of the right stuff you get done.
Yeah, exactly. Now explain to somebody they need to come up with a measurements for all the things I have very efficiently declined to do... saving everybody time, effort and helping the really important task get the bandwidth it needed.