Hardly anyone wants to ask if that is an overall benefit to society?
The sex ratio for India is 108 men per 100 women [1]. For those under 15, the ratio is 113:100, so the problem is set to get much worse in the near future.
If India (pop. 1.2 billion) were to have maximal monogamous relationships and no sex workers, you'd have 577 million happy couples, and 46 million men left over who have no chance of any sexual intimacy.
EDIT: Condoms, contraception, and safe sex are obviously good things. My comment is whether eliminating sex work should be the goal. If that's the goal, then please answer the following question: Should men who don't have or can't find a normal relationship be forever denied occasional intimacy?
[1] https://en.wikipedia.org/wiki/List_of_countries_by_sex_ratio