I think it's more that software development's divided between the maybe—maybe—5% who are looking at comp at these levels, and everyone else who's in the $70K-180K range, with a cap somewhere in lower-leadership positions that perhaps reaches $200K, maybe mid $200Ks at best as you start to move into management proper. Anything past that you've gotta really nail some niche that someone with lots of money (probably finance) needs and likely become a consultant of some kind, or move into the smallish (relative to all US software development) set of positions that compensate like the ones at the link.
Relative to all software development, I mean. There are tons and tons of places employing anywhere from hundreds to tens of thousands of developers each, in the US, not paying anything like this. And almost no smaller shops are, of course. All the positions at all the companies like this, even though most of them are large, I'd still be surprised if it's more than a single-digit percentage of all software positions in the US.
