There are some fat people for whom hunger is instant and incessant and a constant distraction, and perhaps losing 5 years of life at old age is worth it.
For other people, maybe someone who's 20 lbs overweight and would like to be able to play with their kids without running out of breath, maybe the annoyance of being hungry isn't actually that bad for them.
Pain is subjective. One person's excruciating pain - the same stimulus could be a mild annoyance to someone else. I've been tattooed for 6 hours and was able to easily distract myself and laugh while listening to a comedy podcast, other people can't handle holding their finger over a flame for more than a millisecond or can't eat a hot slice of pizza out of the oven.
Pain and annoyance and discomfort can also be acclimated to. What might be really difficult and distracting might become something you get used to and learn to tune out. But then again, to be fair - maybe not. Maybe for some people that hunger is not something they can learn to live with.