And again, while they have similar curses, Dominic still has a far more active writeup and current activities, and he has a woman who's willing to pretend she likes him (as of the Gazetteer) for political reasons--they even have a son together--even though I'd say that he's performed more acts of evil than Jacqueline has. Jacqueline, as a wererat, is evil by default using the old alignment system. Dominic, as a human, had to choose to use his powers for evil (yes, I know, it's difficult to use mind control for good, but still). She killed someone who taught her (likely via emotional abuse) to being even more evil (and who probably was thinking "ah, she took my lessons to heart" as he died). He killed (by manipulating her into suicide) a strict nanny. The text doesn't say, but I like to imagine it involved a lack of cookies before dinner.
Note this line from DoD: He was a handsome child, especially flirtatious with the ladies, who found his behavior harmless and charming. These women lavished affection on the poor, motherless boy, not suspecting how twisted and advanced his little mind actually was.
And from GazIV: Deprived of his mother at birth, Dominic has an insatiable need for female affection and attention. The women in his early life (with one exception noted above [the nanny]) spoiled him relentlessly.
Oh those women! If only they had been stronger and able to resist this charming little boy, they might have realized how awful they were and not doted on him. This not-so-subtly blames the women for giving into him. But where was his father in all of this? The next time he's mentioned, it's when Dominic makes him relocate the family to a new country. I'd bet hard cash that his father's reaction was along the lines of "that little scamp! Well, boys will be boys!"
Also, there's a subtle difference between the two characters. As the screenshot I posted in an earlier post shows, Jacqueline wants romantic love. But Dominic? Dominic wants "female affection and attention" because he didn't have a mother growing up. He's equating love and sex because, well, lots of people do, but he might be happy if he found a new mother willing to dote on him despite his seeming hideousness.