The people who think "I don't care, I'm going to be dead by then" reflect those who run most of the major governments on Earth. In fact, it reflects humanity.
Humanity as a whole generally doesn't give a stuff because global warming is that threat that doesn't feel "immediate" because it is a slow change. If an asteroid is coming at Earth, people'll actively try to stop it.
Human-induced global warming and the super bug are one of the biggest threats that we face today, but no one seems to care because its immediate. That is human nature.