When the internet boom happened, computers had a tiny fraction of the RAM they have today. Everything worked fine. Programmers had to make efficient programs. But we were fine with that. We just programmed in C and C++ and shipped small binaries, because what choice did we have? Nobody tried to build desktop software in javascript on top of electron. And nobody built web servers in python.

If all consumer devices only shipped with 1gb of RAM maximum, we'd get over it remarkably quickly. Just about the only times large amounts of RAM is an actual requirement is AI, some data science / simulation, and editing video in 8k. And maybe 3d modelling. Lots of programs we run today are memory hogs for no good reason - like the rust compiler, cyberpunk 2077 and google chrome. But we could make those programs much more memory efficient if we really had to. Cyberpunk wouldn't look as pretty. But nobody would really care.

The economy won't die due to expensive RAM. Programmers will just adapt, like we've always done.