An interest Canadian article explaining that having a high income is not sufficient on it's own for financial success.

High earners, are not immune from the key 'secret' of financial planning, i.e. Living within your means, and using that 'excess' income to accumulate assets (pension funds, investments, property and savings) is crucial to enable you to retire comfortably. 

In some ways high earners have it worse in that their standard of living has further to fall when they can no longer work due to old age or ill health.