What a gift. This page is briefly stained by my tears of gratitude. Novelists don't usually have it so good, do they, when something real happens (so… - Martin Amis

Exploitative is the key word here. It suggests that while you are free to be as sexually miserable as you like, the moment you exchange hard cash for a copy of Playboy, you are in the pornography perpetuation business, and your misery becomes political.
The truth is that pornography is just a sad affair all around. It is there because men in their hundreds of millions want it to be there. Killing pornography is like killing the messenger. The extent to which Larkin was "dependent" on pornography should be a measure our pity, or even our sympathy. But Motion hears the beep of his political pager, and he stands to attention.

The ad world used to be something of a refuge for literary types. But I feared for myself at J.W.T. It seemed to be entirely peopled by blocked dramatists, likeably shambling poets, and one-off novelists. The whole place felt like a clubworld sunset home for literary talent.

Why couldn't Rachel be a little more specific about the type of person she was? Goodness knew; if she were a hippie I'd talk to her about her drug experiences, the zodiac, tarot cards. If she were left-wing I'd look miserable, hate Greece, and eat baked beans straight from the tin. If she were the sporty type I'd play her at... chess and backgammon and things.