Ego probably helps in cases where the investment of time and effort is irrational. Of course, for most people, that's not really 'helping' at all, since they en

Ego probably helps in cases where the investment of time and effort is irrational. Of course, for most people, that's not really 'helping' at all, since they end up investing too much time and effort in hopeless projects. But I guess a few egotistical people luck out and succeed at something which they had very little chance of succeeding at.