The reality is, that is pretty much the only reason to get vaccinations from any disease even ones that have a higher survivability rate, like chicken pox. Was I afraid my kids would die of the chicken pox? No. But some folks are afraid of that... so I got my kids vaccinated.
But that makes no sense with what you're saying, and I know you didn't get vaccinated for anyone else's benefit other than your own because you could just lie and say you're vaccinated when you're not, and it will have the same effect you're seeking.
I don't believe you when you say you got vaccinated for someone else's benefit because you could just skip the vaccination and lie.