If you feel like you're the proudest man on Earth, then you must be the most efficient and ( the most ) tactful person.
If you're the least open-minded and ( the least ) polite person of the applicants, you won't get the job you want. The employer will think you're the worst candidate he has ever seen !
Pour les mots entre parenthèses, tu n'es pas obligé de les redire car cela fait trop répétitif.