I've mixed feelings about this post

I have had a rocky but reasonably successful software dev career built off a CS degree, it's definitely possible

That said I don't think anyone should try and be "just a developer" anymore. The skills are too easy to learn for anyone who is motivated. The most successful dude I ever met in software was a tradesman that thought up a way to automate a lot of the work that went into providing estimates for his clients as a sales tool, taught himself C# and built it.

The code was garbage, it was buggy and messy and half the calculations were probably wrong in the end, but he still sold it to a competitor for millions. :)

I think a lack of experience outside of CS and Software really holds a lot of software devs back from building great and/or valuable things, because you can't have great ideas if you don't have a variety of experiences to draw from