Any Strength over unmitigated becomes a flaw. For instance, in sales, good speaking skill is a good strength. It is not unusual to see sale people with speaking ability talk too much and talk themselves out of the sales. Their strength got them into it; however, overextended, it turned out to be a weakness and they lose the sales. Listening is strength. Overextended, on the other hand, it could mean that a person listens a lot but does not speak adequate. It develops into a weakness.
Our greatest weak spot can become our greatest strength