The sheer arrogance of this statement... equipment will continue to scale, but there are reasonable break points well before then, just above where you're drawing the line and the reasons why you're drawing the line don't add up to the core theoretical science you're claiming to purport.
As a point of fact no, the monitor is more than what the headphone provides as light can travel in a vacuum. Thus the environment is entirely a hinderance to operation of the monitor, where as an audio device may be enhanced by it.
Wireless tech still needs both a DAC and an amp... the only way around that is a digital speaker driver, but that's currently impractical. Even the best prototype technology that I'm aware of would barely be usable for headphone technology, and that's before considering how to deliver something that's spatially appropriate to be placed next to a human ear.
Why? Because the number of small drivers required goes up exponentially with each additional step in bit depth. 8 bits would be 2^8-1 = 255 drivers per speaker, while 2^16-1 = 65,535 drivers. So you're looking at 50-60 sqcm per driver to get the bare minimum standard for hi-fi, and then you have to configure that so when it fires for certain frequencies and levels, it doesn't deliver sound only down the bottom of the driver, etc.
It's very clear that you're not thinking about any of this at all really, and you've either misjudged what your sources are presenting, or whether they're good sources of information at all.