Some people talk about "feminisms" instead of "feminism" because there are different takes on what is needed to achieve equality. Having said that, it is not a zero-sum game. I mean, yes, it is true that corporate jobs benefit from some things before other jobs do.
But once corporate jobs start having some advantage, it becomes easier to negotiate in other jobs. What is important is that we keep pushing until everyone has it.
The pink tax is another example. Sure, for some people having lower taxes for tampons won't be enough. but it is a start. And you can complement that by providing free sanitary products at schools, shelters, etc. The point is that maybe one first step is to normalize the idea that sanitary products for period are a need. And once people understand that it is a need, and we treat them as such, politics to make them available to anyone who needs them (trans men would be included here), might be implemented. I don't think it is all or none, but things that we need to achieve "step by step".
Even "corporate", privileged women might be indirectly helping by normalizing certain ideas. Once you get used to see corporate women doing something, it becomes less "shocking" to see someone in other job asking to do the same. For example, once you are used to see women at offices, it becomes more easy to expect them at the IT department. Or even in construction. Because at least you have internalized the idea that "women work outside the home and need to earn a wage". But in a place where women stay at home, seeing one in construction would come as a double shock. At least this is how I see it.