Getting specialized in these fields takes A LOT of time and work. Why wouldn't these people ask "Why am I busting my butt, spending YEARS to learn this stuff, just to provide these goods/services to people so that those people won't have to work or learn, and have everything they want provided to them?" Sure, there will be a few (maybe a lot) of people who are interested in these fields, but why would they want to do this work for others without asking for anything in return? And what if there is a shortage of people to do these things? Will someone have to force people to work on this?
Get real . It is happening right now even in predatory monetary system. Plenty of open source projects in advanced technologies like informatics and engineering.