"Ruining" is a bit strong, don't you think? I 'spose you don't listen to any music that uses samples, and you do your best to avoid hackneyed artforms like collage and cut n' paste.
Life's short, so ease up a little. I'm sure Uncle Milton would agree.
I too would say "ruining" is a little harsh. BUT, I say this as a fellow design professional + lover of Glaser's work, there ARE many ways to write I *whatever* New York, while communicating the same message.
About my design