In my experience, bicyclists tend to go slower, stick to downtown roads or rural country roads and generally do not attempt the same sort of highway driving that motorcycles do. Eg. Freeway/interstate.
So while they may be in more danger, there is a different set of expectations.
One point of clarification - I as a motorcyclist love rural roads. They make for fantastic, low stress rides. As a bonus in my area, they tend to include a lot of curves, which are lots of fun on a motorcycle.
So while they may be in more danger, there is a different set of expectations.