"Consistency for consistency's sake" is usually a misinterpretation of "Consistency because there are reasons for the way things are already done and you don't

"Consistency for consistency's sake" is usually a misinterpretation of "Consistency because there are reasons for the way things are already done and you don't understand those reasons well enough to diverge". If you understand the current system completely, then you can understand when to diverge from the system (though this is usually better expressed as "when to improve the system" rather than doing something completely new). If you don't understand the current system, then you can't possibly ensure that you haven't missed something in your shiny new way of doing things.