No, cadno. The work 'farmers' is seen, has been seen, will be seen. 'Women's work' was utterly invisible for a long time, and is still massively under -theorised.
There's a great, recent example, which I have to hunt down and look at.
A charity gave families a cow in order to lift them out of poverty. A group of economists studied the effect of giving the cow. They came to the surprising realisation that, in fact, the only way that the cow-giving could be seen to lift the family out of poverty was by not calculating the labour costs of the woman (and it was the woman of the family) in tending for the cow.
If the labour involved in tending the cow was calculated at any rate at all, the family went into deficit. The cow-giving, in effect, led to the (further) super-exploitation of women. For the cow-giving to be a benefit, it was necessary to calculate the women's labour at zero.
The invisibility arises from the fact that, prior to that study, cow-giving had been going on for some time and no-one had even noticed the women's work.
(I seem to remember Gayatry Chakravorty Spivak having written a good article about super-exploitation and women. But I am really sorry that I remember no more than that.)
There are lots of other - even more invisible - examples. My personal favourite is emotional work. This is often done by women. It's hard to identify, talk about, quantify. It's not really taken seriously. It's not really seen as work. Even raising it as a serious issue will set people off spluttering ('It's not just women who do that'; 'You mean women listening to each other complaining about men?'; etc.).
However, there was a thread on Mumsnet about 'wmotional work' a while back. Interestingly, it had arisen because of the issue of women feeling they were being expected to do teh lion's share of 'emotional work' in the workplace. It was becoming visible. But still very hard to talk about.
I find the invisibility of women's work fascinating.