Elon Musk: How To Be A Billionaire That Saves Our Planet is possibly my favorite documentary: https://www.youtube.com/watch?v=cfleN0WgJAo
Beyond Elon’s target industries–energy, space, robotics and transportation–there’s still many limitless industries with technological innovations opportunities in biotechnology, (eg. Stem cell research), quantum computing, energy, food production and space.
Beyond having basic comforts, there is possibly nothing more important a human can do than advance technology. Technological advancement can help preserve life on earth and enhance humanity’s quality of life.
I think one of the best lasting legacies anyone can leave on the planet is technological advancement. I think the people who solve a major disease like cancer, are doing a humanity a greater service to humanity than the person who donates $1 billion to charities (not to diminish the generosity of a large donation).