You definitely have a good point there. Let's say we have 100% of our energy. We actually need to wait for 100 min to use up all our energy. Those with lots of bread may only take less than 6 min to use up all the energy. I guess the recharging would be the same amount of time but with reduce of wait time, the return of energy may provide more quests within a day if one chooses to keep using bread. Those top players may have done that resulting them actually buying lots of bread which we can see from the transaction at the account @holybread.test. You may be right too that it may not make a great difference.