As a trainee in the 60's and even before the keepering values were taught as part of the training.
You were not a member of the working classes, You were a gentleman's gentleman on par with the butler one inside one outside. To the laird you always touched your cap when you greeted him. Never entered conversation unless directly invited, never stood or stayed in their company but always at a respectful distance. I am sure many on here can add to the list. No matter how good a keeper without the manners your work choises would greatly deminish.
In todays world of syndicates and everybody's equal does the subservient attitude still hold true,