[ghaff]

A lot of people get up on their high horse because others spend money on things they consider frivolous and unnecessary.

I don't read too much into changing clothing styles. Suits and ties were starting to be de-emphasized in day-to-day business quite a while before social media was a thing. (Casual Fridays started in the early 90s or so.) And the sort of inverse snobbery hoodie dress thing is mostly limited to some tech circles.

For that matter, there are still a lot of suits and ties worn in business meetings even if they're not near-universal dress any longer.