Mr. Weasley wasn’t stupid. He could see the way the tide shifted. The fact the Wizengamot members themselves didn’t speak up to her defence said enough. He never wanted to become Chief Warlock – especially not under Dolores Umbridge – but he naively thought he would be able to help fight Umbridge’s tyranny from the inside out. He discovered only too late that the position of Chief Warlock came with little to no power, and that nobody was ready to listen to him over Umbridge.