Not all can put in the work in achieving success, but we can envy those who put in their best when they achieve their goals.
We all do "our best" in the moment, but the best in the next can be better. Just imagine if people took real stock of their lives, listed out their days and all the time used on frivolous activity, and then said "this is the best I am and can ever be".
Do you think they would believe it?