Quite.
Whether individuals broke the rules or not, and whether or not the rules were good, is pretty immaterial.
If you're the leader who sets those rules, then you damn well ought to do your best to abide by them and enforce them in your immediate vicinity, or else you're a hypocrite.
And if you're the leader of a people who've been through a massive collective trauma, you ought to have the humility to accept the standards imposed on you by your office as a public servant.
People in the street might have broken the odd rule. They didn't lie to parliament about it.
"We didn't practice what we preached, we are ashamed, and we are sorry."
Words that Johnson would choke on.