In the case of John -v- Rees  Ch 345, Megarry J observed about the argument that "it will make no difference":
"It may be that there are some who would decry the importance which the courts attach to the observance of the rules of natural justice. "When something is obvious," they may say, "why force everybody to go through the tiresome waste of time involved in framing charges and giving an opportunity to be heard? The result is obvious from the start"
Those who take this view do not, I think, do themselves justice.
As every body who has anything with the law well knows, the path of the law is strewn with examples of open and shut cases which, somehow, were not of unanswerable charges which, in the event, were completely answered; of inexplicable conduct which was fully explained; of fixed and unalterable determinations that, by discussion, suffered a change.
Nor are those with any knowledge of human nature who pause to think for a moment, likely to underestimate the feelings of resentment of those who find that a decision against them has been made with their being afforded any opportunity to influence the course of events."