Taking the time to craft a well-formed message requires a degree of empathy. The golden rule suggests that we write messages in a way that dignifies the recipient. The Global Elite may lack these traits and sensibilities.
Yep. By going out of your way to dress up for an important occasion, you signify that you understand its special nature and are trying to help honor that.
Norms on that have changed over the years. Some people used to wear suits every day no matter what they were doing. It turns out that norms on formal attire and correspondence are subject to change and are no more fundamental than what time we have our clocks set to. People are free to interpret that as disrespect at their own peril. I personally do not appreciate other people's outdated notions of respect being imposed on me. I don't recall signing a waiver when I was born indicating I agreed to be subject to the fashion whims of those who came before.
It's probably smart to wear a suit to a formal occasion but IMO it's quite silly to interpret casual emails as disrespectful. As long as the email respects your time with efficient communication, that should be enough, and will save everyone busywork in the long run.
