https://techcrunch.com/2018/06/03/former-twitter-employees-prove-innovation-isnt-just-for-profit/

There’s no secret the tech industry suffers a reputation for harmfully disrupting a community. But not everyone in tech is to blame for the negative effects. In 2015 Ben Kovacs and Joel Lunenfeld founded the non-profit Guardian Gym, a buy-one give-one mixed martial arts gym/after-school program that now boasts over 300 adult members and youth mentees. Kovacs attributes the success of the gyms growth partly to Dick Costolo’s example at Twitter.

“He talked to the people, he made everyone feel important, everyone thought he was their friend,” Kovacs said. “And I realized that we needed to build a similar type culture if we wanted to be here for the next couple of decades.”