Maybe his reason for doing so was to help spread a message of Christianity to folks without actually, you know, doing a good deed to back it up.
While it’s unknown what made the aforementioned man renege on his act of kindness, there are some folks who intentionally include strangers in their content in the hopes that their videos will go viral, and the consequences of their inclusion don’t go over well, which is what TikToker @bruvw0tt said happened to her.
Source: https://www.distractify.com/p/tiktoker-staged-content-to-fat-shame-woman