Whether theft is a more grievous sin than robbery?

❌ Objection 1 : It would seem that theft is a more grievous sin than robbery. For theft adds fraud and guile to the taking of another's property: and these things are not found in robbery. Now fraud and guile are sinful in themselves, as stated above (Question [55], Articles [4],5). Therefore theft is a more grievous sin than robbery.

❌ Objection 2 : Further, shame is fear about a wicked deed, as stated in Ethic. iv, 9. Now men are more ashamed of theft than of robbery. Therefore theft is more wicked than robbery.

❌ Objection 3 : Further, the more persons a sin injures the more grievous it would seem to be. Now the great and the lowly may be injured by theft: whereas only the weak can be injured by robbery, since it is possible to use violence towards them. Therefore the sin of theft seems to be more grievous than the sin of robbery.