Well didn't PT do that in her own way? I noticed no one was invited to go live in her spacious Victorian house in one of London's most desirable neighbourhood and write all about it, while she slummed it in a tower block on min' wage for a short while! In fact I found her book ever so slightly troubling. But that's another story!
The fact is both of these women make an issue apparent to many people who wouldn't otherwise have given it a 2nd thought, probably.
It is of course tragic that GP and PT, both well-meaning people have to take on their respective, peculiar social pretences (for the best of reasons), to highlight wide social chasms that are getting wider by the day..
GP ate crap and couldn't hack it. PT swapped her gold-plated life of big house, meals out, taxis, etc, with having to deal with social security, loan sharks and shitty furniture.
Alright let's disagree.. But perhaps we agree that both women can try out being poor, but they can't try out being working class; their middle-classness is built into the very fact that they feel their activities and what they has to say matter. Still, all that said, 'better they didn't do what they did?' No I don't think so.