You know, going back to my last point about Worf ending up a poor father when he'd been given such a fantastic example in Sergey, (who must've had it pretty rough raising the kids he raised) the only thing I can think to explain it is that Worf spent his whole youth being so obsessed with his Klingon heritage & the fate of his birth father, that he in many ways took his adoptive dad for granted, & didn't avail himself of the treasure he'd had, until it came time to offload his own progeny there, which would make him something of a poor son as well.
In fact, not to rail on the guy, but I'm not really convinced he was much of a mate to K'Ehleyr either, apart from avenging her death with violence, & frankly was rather difficult in his other romantic relationships as well. For a dude who never shuts up about honor, I'm not seeing much of it in his personal relationships. Methinks he doth protest too much.