E.g., Ken Olsen is hardly a household name, founder of DEC, once the second largest and hugely influential computer company, and, while staying modest, then the second richest individual in the US. (If you are using an interactive computer, you're sitting on the shoulders of what DEC built.) Also (among those who do know him) well known for flat hierarchies and his support for a diverse group of employees. (DEC even founded a dedicated bank, which is still in operation, when employees faced problems with applications for mortgages and credits on the free market, often for racial bias.)