A common misconception about confidence is that it is evidence of competence and know-how. This is typically due to the willingness of a confident person to express their views and ideas to others, make decisions amongst many differing viewpoints, and present a quality of personality sometimes associated with charisma. In some ways, this can over-value confidence as a leadership quality.
On the other end of the spectrum, humility can be misunderstood and undervalued. Where humble behavior sometimes gets unfair criticism is where it is understood as stepping back, evading the tough decisions, lacking in influence, or even demonstrating deference to others. But when it presents in the right way, it can build consensus and allow others to shine, rather than presenting one dominant voice.