Do not have wrong impression from the subject matter, even a child in Pakistan would know that immigrating abroad is not just a choice of an individual.I think the correct title is "Corrupt Pakistanis Among World's Top Nationalities Migrating Abroad"...
Honest Rich Pakistani are staying put and making Pakistan great again!!!
Recipient country need to have provision for letting people immigrate on various counts. If the count is money than there are few countries who accept that while investment amount in Australia, UK and US is very high. So the fact remains 99% immigrants to UK-US and Australia were either asylum seekers or spouse category or a mother giving birth to baby or special case in US where long term residents get Presidential support. but again, In case, if state of Pakistan constituting people like you think otherwise, all can be checked from record and corrupt can be exposed.
Canada is a mixed bag.