If they are in the US, the homeless guy is more likely to simply die instead of being able to get treatment. The homeless guy couldn't have gotten a preventativ

If they are in the US, the homeless guy is more likely to simply die instead of being able to get treatment. The homeless guy couldn't have gotten a preventative scan to catch it, after all, and even if he felt it, what would he do about it? Poverty - or lack thereof - changes the story itself because not everywhere cares about its people.