I rode bicycles for 10 years earlier in my life as my primary mode of transportation a long while ago, and pedestrians always have the right of way over any other conveyance.
And, the purpose is that... any other kind of conveyance could cause more damage. A bike rider, a skate boarder, a car, a motorcycle.. all of those things are potentially moving faster and have more mass, and thus could cause more damage.. especially to someone who may not be physically capable of moving fast enough out of the way (eg: an elderly pedestrian).
That being said... I have also ridden motorcycles for 10 years, and here's the order of operation I mentally follow every time I ride in order to keep myself alive..
1) larger object (that has more mass and could do more damage to me) has the right of way.. every time, even if they're breaking the law
2) if I have to break the law to save my life, I will
3) obey laws if possible
So, if a truck is changing lanes into me illegally while not looking... I get out of their way. I would rather be alive while watching them break the law then be dead or in a hospital bed having my wife argue about how the other person broke the law and I had the right of way.
So, as a pedestrian.. you would have the right of way getting off the bus, but assume idiots all around you are not paying attention and / or don't know the law and can potentially kill you.
Ultimately, you are responsible for your own safety.