While I agree with your point, I’d like to point something out. People like you and I are actually privileged when it comes to our grasp of English. For a long time, I thought it was reasonable to expect people who do business to have a great hold on English until I listened to this podcast on the drive home (special thanks to Spotify & Istanbul traffic!)
In the podcast, at one point they discuss the difficulties behind English becoming the universal language. First of all, English is a relatively difficult language with conjugations and numerous grammatical exceptions that require memorization. This is fairly difficult for someone whose mother language is built on a different structure. Furthermore, English-speakers have a really high standard in terms of what acceptable English is. When someone who has put in effort to learn English says “you and me” instead of “you and I”, people like myself might silently sigh inside and focus on the person’s grammatical inability rather than what they are trying to convey. Thus we arguably set the bar too high and ultimately discourage people from continuing to learn English.
Yes it’s an incredibly valuable asset today, but I can’t help but question whether it should be this important. I’m starting to belief that it benefits people who are born and/or raised with this privilege.