Leave it to me, the iconoclast, to play devil's advocate.
Slytherine isn't entirely out simply because they value people with a strong sense of ambition. In fact, a lot about what makes Slytherine what it really
is, from what I've been able to gather, is to get your way through whatever means possible. Note that the key words are 'get your way'. If that
means that you're gonna do it without compromising your scruples, then its a valid Slytherine line of thinking.
Note also that, in canon, all Slytherines had turned to Deatheaters. I could be mistaken, but I think there were even a few half-way decent Slytherines in
there... Or was that the fanon? Either way, it simply doesn't ring true that the entire House of Slytherine would be a lost cause. Stick Doug in there
and I bet he'll have the place cleaned up in about two or three terms, even if he's gotta get one or two of them expelled (though I hope it
wouldn't come to that).
Slytherine isn't entirely out simply because they value people with a strong sense of ambition. In fact, a lot about what makes Slytherine what it really
is, from what I've been able to gather, is to get your way through whatever means possible. Note that the key words are 'get your way'. If that
means that you're gonna do it without compromising your scruples, then its a valid Slytherine line of thinking.
Note also that, in canon, all Slytherines had turned to Deatheaters. I could be mistaken, but I think there were even a few half-way decent Slytherines in
there... Or was that the fanon? Either way, it simply doesn't ring true that the entire House of Slytherine would be a lost cause. Stick Doug in there
and I bet he'll have the place cleaned up in about two or three terms, even if he's gotta get one or two of them expelled (though I hope it
wouldn't come to that).