It has nothing to do with wealth inequality. Whether you're pooling $100 from a million people, or $20 million from 5, the economics of venture capital are the same. Wealth inequality has nothing to do with this.
The purpose of venture capital (for investors) is diversification. It is an uncorrelated, positive (hopefully) return stream. Investors want to combine uncorrelated return streams as much as possible, due to the AM-GM inequality. The geometric mean of a series with a given arithmetic mean is higher when that series is less volatile.
This happens to retail investors all the time.
> On the other you have a lack of small investors with lower risk tolerance. Both of these are results of wealth inequality.
Citation needed. Retail investors buy all kinds of risky shit. You can do all of these same things with retail investors money. You don't need any wealth inequality whatsoever to explain venture capital.