The only problem with this is that there are so few billionaires. Wealth is good. We should celebrate it, and focus on making more of it, not on resenting the people who have already done so.
Of course! Why didn't we think of that?
Congrats on getting the first sarcastic comment out of me I believe in all my time on HN. What you've said is absolutely breathtaking.
What matters is how much cash you have relative to others, because that determines the actual purchasing power. So in a sense you're right in that the real problem isn't having billionaires, but that not everyone is one. But if everyone were one, there would be no reason to devalue the currency and drop the useless zeroes.
And, of course, the people who own those billions didn't make most of it. Some other people, who get paid salary or wages, did, with their labor. The guys who have the billions are those who collect economic rent from those who do the work.