Though our NPOV policy is surprisingly effective, it falls down a little when it comes to sex and sexuality-related articles. Images featuring sex or nudity aren't always treated in the same way as images with no sexual or nude content, despite having equal relevance to their respective articles. When it comes to sex-related articles and media on Wikipedia, cultural and societal attitudes have too much influence.
Really? I haven't noticed any serious problems. NPOV isn't a definite line in the sand, there's a fair bit of leeway. We err on the side of caution when it comes to sexual images, the same as we err on the side of caution with BLPs, but I think we're still within the range of NPOV.