Those are value judgements. How does a carbon bike get stolen if it's never locked in a public place? Why would a carbon bike be loaded with anything more than a bottle of water and a small saddle bag?
These considerations are important for commuting, touring, and other fun activities, but are perhaps less important for the bike racer.
I've had many coworkers roll into the office with their carbon bikes because it makes quick work of a long commute and it's so easy to carry a lightweight machine up the office stairs. They'd wear a backpack if they needed to carry a laptop. No cars involved; not even a bus.
There's no need to gatekeep which kind of bike someone chooses to use when the objective is to not drive a car. They can ride a carbon bike if they want too.