If gas tanks were money, and you are worth $100K, let's say your car has a 20 gallon gas tank, a billionaire would have a 200,000 gallon gas tank. Think of these terrifs as something that harms "gas mileage". The guy with a 200,000 gallon tank may care, but realistically poor gas mileage is never going to effect their quality of life like it will us regular folks.
The price of groceries goes up, but the price of luxury goods is relatively unaffected. So, for example, the price of a yacht will go up by how much more it costs to fill it's fridge...
It's possible for the rich and poor to both suffer. Of course, when the rich "suffer" that mostly means they can't have all the new things they want and have to settle for the excess they already have. When the poor suffer, they're devastated and unable to live a decent life.
(Yes, the rich get richer by stealing from the poor. A worker at Amazon causes $N to be paid to the company from her efforts, but Amazon will pay her less than $N so they can make money. The difference goes to the rich, whose only contribution was having their name on the paperwork. Billions and billions of dollars flowing toward people who are doing, at best, hundreds of thousands of dollars' worth of actual work themselves. There aren't enough hours in the day to earn the money these people are raking in. It should be going to the people actually doing the work.)
It's worse than that even, it's not that they can't have all the new things they wants etc. they still get all that, their only "suffering" is that their magic high score number goes up at a slower rate, or goes down a little. They (billionaires) see no effective impact of any of this.