Yes I did, I read and reread them many times as a kid and I never saw enough evidence that he had enough limitations to prevent him from doing something like lobbying for legislation. The degree of influence he held in the Wizarding world was huge and none of the reasons given for why he would struggle with changing things convinced me that they were enough to combat the sheer volume of feats Dumbledore had achieved throughout his career, the number of friends he had in high places, or the fact that he, again, very publicly defeated Wizard Hitler 1.0. The 5th book actually showcased pretty strongly how far his influence had spread and how much it intimidated the ministry. He had inside men in both Voldemort's circle (Snape) and the ministry's circle (Kingsley), neither of which were ever suspected or discovered by the leaders of the organizations they'd infiltrated, and he even orchestrated an entire underground order of powerful and influential wizards and witches working in the shadows to fight against Voldemort right under the ministry's nose. It's not like Fudge was terrified of him aiming for Minister of Magic for no reason.