Sponges are weird. They're artificial now, but in the past people would pluck animals out of the ocean and use them to wash dishes and stuff. That seems like something you'd do in the Flintstones.
Telling someone: "why are you depressed, look at how great your life is." Is the same as saying, "What do you mean you have asthma, Look at all this air."
Being born wealthy is like getting an RPG video game with a preexisting save file that has already beaten the game and has all the best armor and weapons.