As a lesbian feminist, Bellos argued strongly in the early 1980s that an inclusive approach to women's issues must take account of social class, minority and majority ethnic identity, disability, sexual identity and religion. This approach was unpopular at the time but has since become accepted as equality law and social attitudes have changed. No longer regarded as "loony left", Bellos now teaches employers and their staff to apply the Equality Act 2010, the Human Rights Act 1998 and other equality law. She notably originated Black History Month in the UK whilst chair of the London Strategic Policy Unit.