Whether sins differ in species according to their objects?

Objections

Objection 1 : It would seem that sins do not differ in species, according to their objects. For acts are said to be good or evil, in relation, chiefly, to their end, as shown above (Question [1], Article [3]; Question [18], Articles [4],6). Since then sin is nothing else than a bad human act, as stated above (Question [71], Article [1]), it seems that sins should differ specifically according to their ends rather than according to their objects.
Objection 2 : Further, evil, being a privation, differs specifically according to the different species of opposites. Now sin is an evil in the genus of human acts. Therefore sins differ specifically according to their opposites rather than according to their objects.
Objection 3 : Further, if sins differed specifically according to their objects, it would be impossible to find the same specific sin with diverse objects: and yet such sins are to be found. For pride is about things spiritual and material as Gregory says (Moral. xxxiv, 18); and avarice is about different kinds of things. Therefore sins do not differ in species according to their objects.