In his view, every historical relation between rulers and ruled contained such elements, which can be analysed on the basis of this tripartite distinction.[20] Weber notes that the instability of charismatic authority forces it to "routinise" into a more structured form of authority.[21] In a pure type of traditional rule, sufficient resistance to a ruler can lead to a "traditional revolution". The move towards a rational-legal structure of authority, using a bureaucratic structure, is inevitable in the end.[22] Thus this theory can be sometimes viewed as part of the social evolutionism theory. This ties to his broader concept of rationalisation by suggesting the inevitability of a move in this direction.[21]