Whether he who raises the unworthy to Orders commits a sin?

Objections

Objection 1 : It would seem that he who raises the unworthy to orders commits no sin. For a bishop needs assistants appointed to the lesser offices. But he would be unable to find them in sufficient number, if he were to require of them such qualifications as the saints enumerate. Therefore if he raise some who are not qualified, he would seem to be excusable.
Objection 2 : Further, the Church needs not only ministers for the dispensation of things spiritual, but also for the supervision of temporalities. But sometimes men without knowledge or holiness of life may be useful for the conduct of temporal affairs, either because of their worldly power, or on account of their natural industry. Therefore seemingly the like can be promoted without sin.
Objection 3 : Further, everyone is bound to avoid sin, as far as he can. If therefore a bishop sins in promoting the unworthy, he is bound to take the utmost pains to know whether those who present themselves for Orders be worthy, by making a careful inquiry about their morals and knowledge, and yet seemingly this is not done anywhere.