Ask HN: What good have you done writing software?

I'm a junior developer working for a tiny company. We run a platform for people to run online courses.

I frequently return to the question of how, if it is really possible, to do some real-world good by writing software.

As programmers, we have the power to organize and shape information and make it publicly available; to streamline inefficient processes; to build platforms for communication and collaboration; to create tools for others to build things with.

It seems like we have, relatively speaking, a lot of power at our fingertips, which could be harnessed for good.

Yet I don't know exactly what I can do that would be really useful in the rest world to people's