Me doubling my salary doesn’t impact you, provided prices stay the same, so as long as people make the same or more money after inflation, I don’t think wealth inequality is particularly relevant.
Doesn’t it? If a retailer has 10 customers and charges them $10 per grocery shop, then it gets (10 * 10 =) $100 a day. If two of those customers now can buy twice as much, then the retailer can double their prices knowing that they would have to lose 5 customers before they start worrying ((2 * 20) + (3 * 20)) about not making profit. Two people won’t notice, Three will grumble and still pay, and who cares about the missing Five?
Doesn’t it? If a retailer has 10 customers and charges them $10 per grocery shop, then it gets (10 * 10 =) $100 a day. If two of those customers now can buy twice as much, then the retailer can double their prices knowing that they would have to lose 5 customers before they start worrying ((2 * 20) + (3 * 20)) about not making profit. Two people won’t notice, Three will grumble and still pay, and who cares about the missing Five?
Inequality in an area is a big concern.