@gsymon That last Prime Minister of Portugal resigned because his chief of staff had been alleged to have a financial interest in the award of a lithium mining contract. This caused the government to collapse.
Can you seriously imagine a Tory Prime Minister resigning because one of his staff was financially involved with a company being awarded a national contract, let alone it causing fresh elections? The idea that there was even anything wrong with it would be ridiculous to them.
Yet Portugal is "corrupt" and the UK is not, apparently.