Who are the heroes of our time? Who is driving us to a better future? And who is inspiring and guiding us?
Anything goes: famous people, people in your own life, fictional people who represent something to your culture, groups of people working behind the scenes etc.
The only rule is they must be current.
Scientists and other rationalists. If you wanted to be dramatic, their fight to save ourselves and the planet would be against the inertia of “common wisdom”, known bugs in human psychology, the resistance of wanting to disregard the unknown or unpleasant, everyone for whom the truth (to the best of our knowledge) is economically inconvenient with the considerable economic and societal power they wield.
They are not good odds, but it is correct against incorrect and often against malignantly incorrect, and they are all extremely formidable villains.