You seem to forget that 'world leaders' constitute about .000000000001% of the population.
No I don't forget. But we the people, the 99.99999999etc% of humanity vote (or allow) these leaders into power, usually based upon their offers, take as much as we can from the system, and then years later, blame them for the mess-ups that we have allowed. And we never blame ourselves, it's always some other crowd, group, party......or leader.
It is true that they 'blunder'. Churchill came unstuck many times. But for people like him to have the unbelievable guts to stand up again, and carry on, rather than run and hide........ to carry a nation thru darkest times alone ...... that's the ticket. And I reckon that Margaret Thatcher could have done that as well.
I never voted for her, her party, their disgraceful policies or the arrogant lack of empathy they showed; 'Out of work? Hard times? Get on yer bike and find some!!' (Tebbit)
I remember the local East Kent miners trying to demonstrate against oil deliveries to Ramsgate, and how they were put down, and I remember the scandal when we discovered that coal (mined by children) was being imported from a South American country. I remember all that.
But looking at the person, and her guts, I would like to give her respect at this time.