We (including you) don't do it because it pays.
I don't know why we do it...but perhaps Jordan Peterson can tell us why.
Precision in language is just an extension of the love of precision.
Carpenters love precision. Mathematicians love precision. Even accountants love precision.
Being precise is being a purist.
Humanity is build upon a foundation of "precision."
In writing reports, sometimes the client nit-picks at things.
The temperature and pressure data are modeled....
However, only the temperature data are used in the calculation of the....
“Hey - change that second “are” to “is”, as you are only talking about the one type of data.
It doesn’t matter that much to me - the meaning is the same.
Okay - I just looked it up. It seems that both the plural and non-plural wording can be okay in some instances.
(Now, if he wanted me to change my results like NASA does in order to prove some other conclusion....)