Think through a little more of what the parent poster said. If companies truly did gain that much more trust and good will from secure code, they would all be doing it.
But they are, with increasing intensity. Companies really suffer from security blowups and customers are becoming more aware of its importance. This is why the attitude I cited is so dated and needs to finally come to an end.
I've heard "companies are finally taking security seriously" mantra for almost 20 years.[1] Maybe it's true this time. But often the customers don't give a hoot whatsoever, and so the company doesn't either. Admonishing them might feel good, but unless you are paying them money, your opinion is not really an issue to them.
[1] I had a boss who insisted that TJ Maxx was going to collapse because of their security holes. Nope.
