Correction: a piss poor 27 inch display. "Quad HD" is way too little for that size; you need to at least quadruple the amount of pixels to get anything resembling print quality.
And I don't understand why we shouldn't strive for that. After all, (for me at least), much what I do on a computer is reading, and that benefits from a higher-resolution display up to a point much more than images.
If you're trying to make a 6" screen and a 27" screen at the same dpi and aspect ratio, and the 6" have unacceptable defects 1% of the time, the 27" screens will be defective at 4.5^2 times that rate, or about 20%.
And I don't understand why we shouldn't strive for that. After all, (for me at least), much what I do on a computer is reading, and that benefits from a higher-resolution display up to a point much more than images.