People hate the rich, but that's capitalism and I'm all for it. People hate seeing rich people in mansions and rolls royces, but chances are pretty good they earned it somehow. I don't think many are due to hitting that once a month lottery jackpot.
As for their money, most of it is in bank and tied up in investments, which in turn is recycled back into the economy as personal loans, credit, mortgages, business loans etc.... No millionaire or billionaire has all the cash stacked in an underground safe like in the movies. Also, rich people will buy up company stocks which in the long run drives up a company's worth. Banks don't have coffers of money out of thin air.
The thing about rich folks is that their money typically builds up over time because unless a millionaire or billionaire is spending the same or more than they make, their asset pool is getting larger even if the just leave their money in a 1% savings account.
Even for a rich guy, it gets to a point where you can't really spend anymore unless they force themselves to buy Ferraris every hour. For average people with little savings, they often don't save much because most can't control themselves and have to keep buying homes they don't really need, the next iPhone, fancy jeans and endless $5 Starbucks coffees twice a day. Mortgages and personal loans are basically at all time lows of around 3%, so better than ever to save money as only a small amount goes to interest. But I guess people interpret low mortgage rates = more money to buy crap and have to pay off 19% credit card bills. Pretty hard to save money if people are trying keep up with their neighbour buying useless crap.
I know so many people in similar age and salary than me. And guess what? I have more money than most of them when we talk dollars and cents. Why? I don't blow money on crap, I flip through the newspaper ads looking for deals and I don't force myself to take that 2 week vacation to Mexico every year. And these guys all wonder why I have so much money lying around to invest in stocks and real estate. It takes money to make money. And I budget myself to always pay off my monthly credit card bill. I've missed paying twice in my entire life..... once on a VISA and once on a Mastercard because I forgot. I paid the next day. Oddly, one charged me interest, the other gave it to me as a free grace day. lol. The interest I got charged was probably only a few dollars.
So for all the people in debt with 5 credit cards where 3 of them are maxed out with 19% rates, all you really need in life (assuming you can control yourself) is two cards. One VISA, one Mastercard. They are the two most accepted cards worldwide, so if one fails somehow or the shop only accepts one, you have a backup. If you're paranoid about coverage, then get an Amex too so you have three of them. But that's it. I only use my MC card, but I have my VISA in active status just in case.
Also, if have to have debt because you are a spend, spend, spend guy, then do in on line of credit where the interest is maybe prime + 3%. That equates to maybe 6%. If you have high assets, you can probably get prime +1%. If you do one of those "borrow and tie it against your mortgage deals", you can probably borrow for prime. Better than paying credit card rates. But not everyone knows this and some reason they prefer paying credit card rates. Lines of credit are easy to get. I got my first one at around 25 years old when I had pretty much zero assets. Banks give these away easy.