Being on the right side of history means holding on to something long enough that it becomes old, a little boring or, figuratively, history, at least long enough for the tide of fashion to have gone out and tested whether you can stand unassisted.
"Whoso would be a man, must be a nonconformist."
Being on the right side of history means holding on to something long enough that it becomes old, a little boring or, figuratively, history, at least long enough for the tide of fashion to have gone out and tested whether you can stand unassisted.