Do not exploit the poor because they are poor what does exploit mean in this sentence?

People can become poor for a multitude of reasons. Some of them may have lost their jobs, some may not have had a fulfilling education, and some may have a low paying job. Illiteracy is not a...

The banks exploited all their costomers.

The black mail was used as a way to exploit her

exploit = a bold noble act.

Poor is a predicate adjective in that sentence.They= subjectwere= linking verbtoo= adverb describing poorpoor= predicate adjective linked back to theyto= prepostionmarry= object of the preposition