Take “You deserve it”.
Countless advertisers have used versions of this to help consumers justify self-indulgent purchases.
There’s L’oreal “because you’re worth it” and MacDonalds “you deserve a break today”.
The opposite of selfishness is selflessness so flip “You deserve it” on its head and you get “You must buy this for the greater good”.
Do your family a favour - buy those Golf Clubs!
Your family needs you to buy that excruciatingly expensive Hi Fi system.