on (someone's or something's) (own) merits

on (someone's or something's) (own) merits

According to or based on facts or qualities essential to a person or situation. I can assure you that she got the job on her own merits and not because she is the CEO's daughter.
See also: merit, on

on its merits

Also, on one's merits or according to one's merits . With regard only to the intrinsic quality of something or someone. For example, Who supports it doesn't matter; we have to consider the idea solely on its merits, or The agency doesn't care about her references but wants to hire candidates according to their merits . [Late 1800s]
See also: merit, on