Ah, the spirit of Glompers. "More" - fundamentally, there's nothing wrong with that, but really, there's no reason for anyone outside of your group to support you any more than there is for you to support my own personal quest for more money. It's just a larger empire of crumbs.
The problem is that I don't think this will work, for the same reason that management generally doesn't unionize. Management doesn't unionize because their role is to act in the interest of capital. If capital thinks that management is in it for themselves, management becomes dramatically less useful. (and really, I think that we see a lot of management capture of resources that would normally flow to capital. Management is less useful to capital than it has been in the past. Capital knows this.)
In the ways that matter to these discussions, people who create and manage automation infrastructure are management. It's just that we manage machines that do work, rather than humans that do work. For the same reason that management that was not seen as acting in the interests of capital is worthless, developers who are seen as not acting in the interests of capital will be seen as worthless, too. (I mean, from the perspective of capital.)
Now, I do think that culturally, we are very different and there are some things we could argue for that would improve our lot and that of capital. really, in some ways, I'm very much in agreement that technical workers should be getting a lot of what capital currently gives to management. We can start by making a culture of open salaries. this will eliminate a lot of what management's job is, at our level, which is to individually and secretly negotiate salaries. There's no reason to pay tech workers who negotiate well more than those who don't, so job roles should have pay rates that are known throughout the company. (Of course, there is still negotiation involved in who gets what role, but I think that's negotiation that the technically inclined are better equipped to deal with than straight secret salary negotiations.)