Not a very good theory, because I recently left a place with lots of soul-crushing work but where people in the software functional all had two monitors.
I was working mostly as a software engineer, but was actually categorized as a systems engineer; I did not have two monitors. They had people in the electrical and test orgs working effectively as software engineers also, and few of them had two. This (dys)functional organization was not at all apparent to an outside observer, no matter how much research they did, without someone on the inside.
So, while I would certainly be more favorably inclined towards a company that promised two monitors, choice of dev box, or other things, I would not use such things as a primary or secondary filter on where I want to work.
I was working mostly as a software engineer, but was actually categorized as a systems engineer; I did not have two monitors. They had people in the electrical and test orgs working effectively as software engineers also, and few of them had two. This (dys)functional organization was not at all apparent to an outside observer, no matter how much research they did, without someone on the inside.
So, while I would certainly be more favorably inclined towards a company that promised two monitors, choice of dev box, or other things, I would not use such things as a primary or secondary filter on where I want to work.