I can't say I'm not disappointed but he's only a butler. There's only so much he can do anyway. Would you go so far as to pledge your undying loyal to your boss first month in? Probably no. Capable servants wishing to serve admirable masters I can understand. As much as feel for the old Chloe, I wouldn't want to work for her either. She's just not a capable leader.
Maybe if there is at least someone by her side who could help her "change", she wouldn't be so useless? Like imagine everyone told you how useless you were and someone gave you a motivation to change yourself and make you believe you're capable of this and that I bet she would've try changing herself. But nonetheless you're right, most people are not characters in books who would want to serve admirable masters only
The purpose of a butler is to help them and take care of them also to follow orders from the masters and protect them but he fail to do that YA HEAR ME YOU'RE UNWORTHY OF BEING A BUTLER YA PRICK
And also the maid who's being a bitch ヽ(`Д´)ﾉ screw you