I believe it's a generational thing. Most of us old timers are content with our bikes that cruise at a comfortable 20/25 mph. It's the younger ones who want them to go faster. This isn't surprising when you compare our bikes to music, fashion, hair styles etc. The kids and the older folks will never agree, never have, never will.
When speed is concerned I just say, "live and let live". It's the noise problem that I see as an issue that can effect the hobby as a whole. Loud exhaust and unsafe riding can, and will attract the attention of the authorities and bring unwanted legislation.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"