While Lucius Malfoy was clearly a powerful individual in the books, his manipulations were fairly clunky, and nowhere near as subtle as portrayed here.
We assume he’s competent because Dumbledore keeps referring to him as competent, but Dumbledore does have a motive to exaggerate his enemy’s power. He constantly uses Lucius as an excuse to not do something, and he flat out tells Harry early on that weakening Dumbledore strengthens Malfoy.
But Malfoy is in over his head. Every time we see or hear from him, he’s getting something wrong, being ineffectual, or being publicly humiliated. By contrast, he seems pretty darn effective in the books. His scheme in Chamber of Secrets was simple and robust enough to work, and even with Harry repeatedly being in the right place at the right time it still ends with the Weasleys discredited and the Malfoys untouched. (Edit: Sorry, misremembered. He goes after Dumbledore prematurely and loses. Good scheme apart from that, though.)
His main obvious difference from canon is the way he’s raised his son.
The house-elf also protected Harry from Lucius’s subsequent attack and blasted his former master down a flight of steps. Lucius was dismissed as a Governor for his threats against the other eleven colleagues.
I’d have to read CoS again, but from the sound of it, he wasn’t kicked off as a direct result of the scheme but for other things—the threats. If he had been cooler-headed...
We assume he’s competent because Dumbledore keeps referring to him as competent, but Dumbledore does have a motive to exaggerate his enemy’s power. He constantly uses Lucius as an excuse to not do something, and he flat out tells Harry early on that weakening Dumbledore strengthens Malfoy.
But Malfoy is in over his head. Every time we see or hear from him, he’s getting something wrong, being ineffectual, or being publicly humiliated. By contrast, he seems pretty darn effective in the books. His scheme in Chamber of Secrets was simple and robust enough to work, and even with Harry repeatedly being in the right place at the right time it still ends with the Weasleys discredited and the Malfoys untouched. (Edit: Sorry, misremembered. He goes after Dumbledore prematurely and loses. Good scheme apart from that, though.)
His main obvious difference from canon is the way he’s raised his son.
Malfoy gets kicked off the board of governors I thought?
I checked and yes:
I’d have to read CoS again, but from the sound of it, he wasn’t kicked off as a direct result of the scheme but for other things—the threats. If he had been cooler-headed...