If you think that good, clear, written English is irrelevant, pedantic or elitist you really need to think again and read this from the Guardian …
Regardless of style (which needs to vary with context) good, clear, factually correct writing which is correct in grammar and spelling, helps engage the reader. And after all, that is what you want, isn’t it!?
And yes, NHS and HMRC, I’m looking especially at you!