I'd disagree with that. Some of the most entertaining bits of work I've ever done were for companies whose main job wasn't software.

The problem isn't companies who aren't focussed on software. The problem is companies that don't value the great things that software-oriented folk can produce. Unfortunately there are plenty of the latter in the software-focused end of the spectrum too.

Don't work anywhere that treats you badly. Sure. Don't work anywhere that doesn't value you. Sure. Don't work anywhere you don't enjoy yourself. Sure.

But I know some folk who are having excellent fun at banks. Solving stupidly hard problems that fascinate 'em, fostered by great management, and being compensated very well for their trouble.. I know others who have worked at large tech focussed companies that have had bloody awful stories of management idiocy. Hell — I've got more than enough horror stories from smaller tech-focused organisations.