In The Vampires among Us by Thaddeus Romans
Despite the extremely pale complexion of vampires they ran little risk of recognition.Most people never thought about vampires, or didn't believe in them. They were able to conduct business and engage in business transactions at night. Maintaining secrecy for survival meant that most vampires were frugal by nature. Over long periods of time, many of them were able to accumulate substantial amounts of money. They became shadow partners to businessmen who couldn't obtain loans through ordinary sources. Some vampires became patrons of the arts. The symphonies and arts in many European capitals benefited significantly by donations from vampires.
In the 20th century as cities grew massive vampires could mingle in select segments of society. However, by now there was a greater awareness of what the vampire looked like, which forced them to expose as little skin as possible. The face could be made darker with the use of makeup. In the vampire novel, Unholy Embrace, by Neil Benson, Nessa, the vampiress had extensive involvement with French impressionist artists.