I know that this was a rhetorical question, but I hope it's OK to answer it, anyway, because I think there's an interesting point to be made.

Guys send dick pics because they want similarly risqué pictures. Obvious. But they aren't taught to regulate their emotions (as several entries on the above list make clear) so their desire for risqué pics is flooding their thoughts about the recipient and they fail to distinguish between what they want and what the object of their desire wants (a recipe for disaster at all times and in all places).

The thing is, women do the same thing, albeit in a different domain. They exhibit behaviour towards men that they would want those men to exhibit towards them, like displays of caring and social awareness. This behaviour, however, is not problematic, where men's behaviour is. The issue is that men often miss the more subtle signals and, I would hazard a guess, that some of those that do pick up on those signals have learned to read the signals for, shall we say, Macchiavellian reasons.