Such distinctions are difficult in practice because the members of the target group are ignorant of the fact that they need help.
Patients may be ignorant of their own level of ignorance or subject to even higher order forms of ignorance.
Unless there are very many genes, the outcome depends on genetic details of which we are usually ignorant.
Indeed, the ideal scholar of this new economics was happily (and purposefully) ignorant of (or indifferent towards) theories.
Such resurrections often come at a price, directors seeming to believe that audiences are either intolerant of ancien régime norms, or are simply ignorant.
Your influence in politics is so small that once the costs of becoming informed are taken into account, individuals often choose to remain rationally ignorant.
One answer is: that 'ought' about which you are not ignorant.
Wyvern justifies keeping the poor ignorant by sympathizing with the pain education would cause them.