Regarding OP - of course, groups of travellers braying about FF status, upgrades etc and various "first world problems" can be annoying to other travellers.
This is not unique to Business Travellers . It's more a function of groups of males.
Many, most perhaps, business travellers are lone flyers in economy like me.
You mightn't know to look at me whether I'm a business traveller or not.
By the way, I don't recall seeing signs in European airports telling us which side to stand on the moving walkway.
But how much intelligence and consideration does it take to work out that you shouldn't block a pathway in a busy public space?
My aim is to get through the airport in as smooth, speedy and efficient manner possible - which is the purpose of those walkways.
I walk on them as fast as I can. They're not there for a standing gossip party.
or a jam session - check out Fergal Scahill and David Howley playing on the moving travelator at PDX: