Full Idea
The advantages of a monarchy are that the private interests of a family are connected with the interests of the state, …and at least there is always someone available to conduct the affairs of a monarchy.
Gist of Idea
A monarchical family is always deeply concerned with the interests of the state
Source
Alexis de Tocqueville (Democracy in America (abr Renshaw) [1840], 1.07)
Book Reference
Tocqueville,Alexis de: 'Democracy in America (abridged)', ed/tr. Renshaw,Patrick [Wordsworth 1998], p.59
A Reaction
The second one is not much of a reason! The same defence can be given for the dominance of the Mafia. His defences are deliberately feeble, I suspect. England had plenty of monarchs who showed limited interest.