His gender.

It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife.

It is another truth that a young, well-endowed man gifted with good looks and a powerful build enjoys the delicate attentions of the weaker sex, even when he should not always behave as befits a gentleman.

That the Bennets and Bingleys of the world should always find their way to each other won’t come as a surprise to the sagacious, but from such an observation may one conclude that a woman finding herself within a male envelope would likely find much greater success in life than a man faced with the prospects of living as a woman.

In no other individual was that observation as evident as in your agressive, self-righteous prideful epitome of prejudiced jock elder brother. You could still feel the shame of being forced to engulf more than you could chew in a debased conjointement, powerless against his will and physical power, and turning the tables on him came as an obvious move.