If everyone had $50 then all the things around you would cost around $50. Money were invented to calculate different values..otherwise you are as good as exchanging one thing with another.
With respect, this is getting into narrowminded ideologous thinking on your part. If everyone had $50, there would still be things they would trade at $5, $1, or $0.10. Where do you even get locked into this mindset that they wouldn't? What's your argument?
I am talking about a system of equal distribution. If everyone had capital that averaged 1 million dollars then the products, land, cars and everything else will be averaged based on that amount. There wouldn't be a measure for actual price other than the one set by the seller/buyer. Stock exchanges set prices based on the difference of value. If every single stock traded a million it would be hard to sell one to buy another. Everything will be around that 1 initial 1 million.
No one is suggesting that every THING of value be forced to be equal. Things differ in value to different people, hence allowing for mutually beneficial exchange. You're shifting the example to be something ridiculous and then arguing against that. People having equal amounts of wealth does not inhibit the economy. That's the argument you contended against to begin with here.
People having equal amounts of wealth destroys the economy. Every time it happened it collapse. aka communism.