People do not help humanity by taking flu shots; it is purely to avoid getting ill for a few days. There is really no need for anyone who are not in (any significant) danger of dying to take these vaccines, as it promotes, the allready frequent, mutation of the virus.
Personally, I think people should be careful with the medication (mainly the pre-emptive, but also many prescription pills) the take. Most (not all) are really not necessary and just change your biology in ways we have no control over.
I am not saying you should avoid medicine in general, just think about what you do/take.