It makers sense at one level, for a husband and wife their relationship is there for the long term and there's a natural(?) tendency to keep things "vanilla" so as not to stress the relationship.
With a bull it is (should be?) just about the sex not a long term relationship so he has less fear of upsetting the woman, if she gets really pissed-off and stops seeing him then he just moves onto the next one....
and the wife will accept some things that she doesn't like because she is getting better sex