That isn't true. Software is just a kind of tool. Some software is fart apps, some is enterprise CRM but a lot is really useful in tangible ways that have nothing directly to do with capitalism.

I also disagree with the implication that there is something inherently unworthy with selling things on the free market. This is the way most people on earth get most of the things they need and in many cases it is the most efficient rationing mechanism practicable.

Beyond all this, it's good to do things you love. If someone really enjoys the activity then it is none of my business to say they shouldn't because it is at worst quite harmless.