Legacy is a strange concept. I believe it comes from our inate fear of death. I believe we look for how we will be remembered to ensure we will not be forgotten. If that's the definition, I don't think I have a legacy, because nothing I affect will last.
The solar pv projects I design need to be replaced in 20-30 year's. I will probably out live them. The words on this site will disappear as soon as the address expires. And I will eventually die.
I do have a dream of a building a charitable foundation and giving money to young minority people who want to go into STEM fields. But currently that's my pipe dream. My hope is that will be my Legacy... Someday.