Lord Byron, as many of you know, was John Polidori's inspiration for The Vampyre. Polidori adapted a short story written by Byron in 1816 into his vampire novel. As a result, Byron himself became the prototype for the traditional vampire character. There are a couple of aspects to Byron's real life that are integral to the early vampire character. The first of these aspects is the charismatic, aristocrat. Byron himself was of noble descent. He possessed many friends and was an influencer of people; an author. This prototype is also followed in the early, popular vampire tale of Lord Dracula, and is mimicked by the character Lord Ruthven. In addition to this, Byron was described by his ex-wife as someone with great charm, but possessing a dark side. This again fits into the vampire character created by Polidori.
High society in this story is not any different than high society of today in my opinion. These people posses enough money, power, and influence to do and go where ever they please. Lord Ruthven is no different. He and his travelling partner Aubrey journeys take them to Rome, Greece, and England. I believe that the vampire character is a response to this culture in that it is a flaw in an otherwise flawless figure; the noble. Polidori, probably like many of his other non-noble constituents, must have believed that people with this sort of power and wealth must have some skeletons in the closet (no pun intended). Furthermore, this theory seems to fit into the idea of paranoid Gothic, whose central theme is an oath between two men. This oath could be between aristocrats to keep these secretive, vampire transgressions between them.