VC Neil Mehta, co-founder of Greenoaks Capital, is defending his recent building purchases in San Francisco's Fillmore Street commercial district.Mehta claims that the acquisitions are aimed at revitalizing the city and are not driven by financial gains.He states that the purchases are made through a real estate fund backed by a nonprofit, to which he has donated $100 million.Mehta assures that he has no financial interest in the properties and any proceeds will be reinvested in the community.