I think it's like people see some bankers triggering a financial crisis, and some bankers taking home huge bonuses, and decide bankers are assholes.

Likewise for politicians, cops, CEOs, lawyers etc.

Fortunately, the reputation of us techies isn't yet as bad as the reputation of bankers, politicians and lawyers! Just as well, as it's not clear to me that we have the will or ability to improve or manage our collective reputation.