The revolution will require contributions of all types and magnitudes. Everyone has something to contribute. From each according to their ability and so on and so on. :zizek-ok:

There are many fields in technology which will prove useful in building a new world. Radio/Wireless communications, networking/routing, software development, systems administration, digital publishing, guerilla marketing and agitprop, black hat and white hat security diciplines, cryptography, automation, manufacturing, reverse engineering, DIY repare, recycling and re purposing old and abandoned equipment and that is probably only scratching the surface.

Just like no specific ideological sect is going to make the revolution happen on their own, no particular technological discipline is going to unlock the door for us. It is our responsibility to contribute what we can. To be a part of a trend which moves things in the direction of the future we would like to see.

With that in mind, focus on something which interests you. If it interests you enough, you can take the grill pill and excel at it. If you can excel at it, you can take that talent and focus it on improving people's lives.