To get to the numbers like "1% of people own 40% of the wealth" you have to go the 1%, which is to say about three million people, and then you're including a bunch of doctors and software engineers who are clearly not in the same box as the Walton and Mars families.
The fact that rich people have a lot of money is not really a recent development. But it's the focus on the super rich which is missing the thread.
If housing prices go up, people at the 25th percentile lose and people at the 75th percentile gain. We see the loss for the people at the 25th percentile and recognize it as a problem, but then people are pretending like we can just take the money "back" from the Walton family even though that's not where most of it actually went.
It went to home price appreciation for a bunch of middle aged and retired sociologists and car dealership managers and dental hygienists. If you want them to give it back so the poor aren't so poor then you have to recognize that and thereby identify who it is you really have to fight over that money.
We should ignore the people with the most assets, and only pay attention to the people with the most assets?
Not really. The profit on buying for $8 and selling for $11 is about the same as on buying for $9 and selling for $12. You make a little less, because there is lower demand and you have higher initial capital costs for inventory, but it's only a marginal difference.
The reason they don't do it regardless is that if Sam Walton tries selling only the carbon-priced thing for $12 when some competitor is selling the bad thing for $11, the customer chooses the lower price. There is still a Walmart-shaped thing in the economy whether or not it's called Walmart and founded by Sam Walton, because most customers choose that over the thing that costs more.
Because they have instant personal feedback into the price and the taste but not into the long-term health effects of sugar and red meat. But if you can solve that for voters then doesn't the same solution work for customers?