Complex sentence: The industry faces criticism because it is seen as creating an unequal footing for the poor and rich in Korea, while some see hagwons as filling a need not being adequately met by the public school system.
Split into simpler sentences: The industry faces criticism because it is seen as creating an unequal footing for the poor and rich in Korea. While some see hagwons as filling a need not being adequately met by the public school system.