Equality of Opportunity and Equality of Outcome

Some American politicians distinguish between 'equality of opportunity' and 'equality of outcome'.  Now, that acomparison is derived from, and abstracts from, Smith's thesis that a Nation is stronger if outcomes are determined by an 'Invisible Hand' than by some entrenched Feudal arrangements.  The abstraction thus facilitates the avoidance of further comparisons, e. g. one according to which a system that implicitly neglects 50 per cent of its participants is weaker than one in which the strengthening of all is a fundamental goal.