You are absolutely right.

We get awfully wrapped up in ourselves (which is normal and natural and not an entirely bad thing at all) but we are certainly prone to forget how fortunate we are. Even the bottom few percent of the people in the USA or Canada (or most of the countries that most of us are posting from) are better off in so many ways than the majority of the world's population.

If anything, that is both part of my disgust at myself and part of my motivation to do better. I have the opportunity to make healthy choices in situations where most people in this world have little to no choice at all. That I have so frequently chosen to do the unhealthy thing is a mark of disgrace that I must bear and that I must make up for.