Are the profits derived from a pharmaceutical company that uses advertisements containing images of women and indecent, immodest suggestions, which were objected to without success, halal or haram?

It is not permissible to place images of unveiled women in advertising for any product, as this promotes vice and temptation and condones what is forbidden. Everyone who participates in this prohibited advertisement incurs sin. If the product is permissible, the profits from its sale are permissible, but with the sin incurred by those involved in the prohibited advertisement. You must continue to advise your colleagues and explain that sustenance is apportioned and should not be sought through disobedience to Allah. If they insist on what is forbidden, you should seek a way to avoid participating in the cost of the advertisements or leave the company.