What are the five roles of butler?

Butler Job Responsibilities:

Greeting guests and acquainting them with the hotel's amenities.
Anticipating guests' needs and solving their problems.
Researching dining and entertainment recommendations and making reservations.
Providing directions and information about local points of interest.
Hiring and supervising staff.

Is it rude not to tip hotel housekeeping?

According to the American Hotel & Lodging Association (AHLA), guests should tip housekeeping anywhere between $1 to $5 per night for a mid-range or business hotel. For luxury hotels where the staff offers daily cleaning services and nightly turndown services, guests should leave a little more.