This is even true for "celebrities" today: there are different rules about where they still get to keep their privacy, and even then the society's thirst for the most intimate details is unrelenting. I am not saying this is "fair", but that it's recognized that "celebrity" has quite some downsides too.
OTOH, people featured in these videos are not going to hold a press conference when they start a new job (eg movie filming, sport team changes, winning elections), or even about a terminal illness they might be facing, where all of those are quite common with celebrities.
OTOH, people featured in these videos are not going to hold a press conference when they start a new job (eg movie filming, sport team changes, winning elections), or even about a terminal illness they might be facing, where all of those are quite common with celebrities.