Arn't 'ighwaymen better than 'em pirates?

Pirates, sittin' in their boats sodomising each other while waiting fer a ship to come by an' plunder it. Back in the same period o' time, there were gallent and brave lads ca'd 'ighwaymen, an' thay were mair cooler. Why do thay immortalise those sodomising poofs, like Blackbeard, but no men like Turpin?