At the time of writing, most big recent successes (Microsoft, Apple, Facebook, Google) were started by people with skin and soul in the game and grew organically—if they had recourse to funding, it was to expand or allow the managers to cash out; funding was not the prime source of creation. You don’t create a firm by creating a firm; nor do you do science by doing science.
This is true if one has money to begin with. Not always true of female and minority lead businesses. These often lack friends and family funding.

