Is Dance really a Dance Nowadays?

Dance is an art form which dates back to time immemorial in India and like the other art forms has been integrated into Indian Cinema.Certain historians of Indian cinema have emphasized the orgasmic function of these songs and dances, sometimes very lascivious and even suggestive of the sexual act in the context of a cinema which is otherwise heavily censored, besides censorship , the rules of proprietary do not permit any openly explicit scenes ( nudity, even kissing was not allowed until the 80's ) , But In 60's  when colour films became the norm in Pan-Indian commercial cinema , the happiness of the lovers was usually shown by exuberantly choreographed dances accompanied by songs (with frequent costume changes in the same song) , shot against the background of beautiful landscapes of Kashmir or the green hill stations of Tamil Nadu and Kerala. The camera was freed from static shots and dialogue. , But in 80's these interludes of dance reached to obscene heights- a sort of substitute  for the sexual act. But in my perspective from 1930's to 60's the period was known for professionalism of its artistes & choreographers , where they were only interested in showing the best moves and used to search for the actresses who are perfect in her expressions , moves but now the directors are interested in reveling the body of the women , where she is completely drenched so that her sari or clothes mold her body, either by rain or bath.Audiences get very much influenced and there mentality starts working in that way. Today item numbers have become a necessity ,however these type of dances tend to have no connection with the substance of the film.For a spectator these intrusions can seem very abrupt , vulgar, disrespect towards women , distracting because the dramatic action suddenly fades away , the emotional flow is cut off at a certain point of action. These item numbers are taken as something which fill in the emptiness of the film.