system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] What would Dark Lords from other Hogwarts houses be like?

The image of Grindelwald and Voldemort, and to a certain extent Lucius Malfoy and even Severus Snape, seems to have heavily influenced the concept of what a Dark Lord is. They appear to be egotistical, brutally ambitious, and extremely fond of unforgivable curses. In order words, textbook Slytherins. 

But everyone, regardless of house, has the capacity for evil, even supreme evil. So what does it look like when a representative from Gryffindor, Ravenclaw, or even Hufflepuff takes the top Dark Wizard spot? What do their methods look like, and how are they different from Slytherin Dark Lords?

These need not be direct examples of known wizards gone bad; I'm more interested in your thoughts on what happens when the attributes prized by the other houses are twisted to evil purposes.
gpt
These are examples, not guaranteed 100% would-be-like-this.

Gryffindor - Charismatic warhawk that wants to end the statute of secrecy and conquer the muggle world by force.

Ravenclaw - Schemer, plotter, amoral experimenter, or some combination of the three.

Hufflepuff - Radical that gathers together nonhumans and muggle-borns to overthrow the Pureblood families, the Ministry of Magic, or both. Alternatively, a wizard that works hard their entire life, has one bad day, and snaps.