Actually, if you look at the massive investment in technology in the 1980's preceding the Internet and Telecom explosion (and eventual FED induced bubble economy) of the 1990's ... something worked. A lot of people don't correlate the success of their public worker retirement plans, 401Ks, IRAs, 503Bs and other retirement (or even insurance in some cases) savings plans to the performance of markets. They like to go after rich people in the stock market but are somehow oblivious the fact that their retirement plan is probably diversified ... in the stock and bond markets.
Not really any different than if someone financed a car, and cars are known to be involved in accidents or death. What about financing of Boeing 737 Max aircraft? Pharmaceutical companies where drugs have known risks?