Surely, after the legal realists plunged us into a century-long nightmare of litigation and government by judiciary, precisely as its critics warned, we can see the value of legal formalism.
Law is inherently objective and consistent because it is defined as such. If it isn't inherently objective and consistent, it is not the rule of law but the rule of men. Which we have far too much of these days.
"The Rawlsian god: cryptocalvinism in action". - 2007