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Benefits of soapy detergents over the soap less detergents

What are the benefits of soapy detergents over the soap less detergents? Briefly state the benefits?

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Whenever we put on dirty clothes in the detergent then due to the chemical bonding made up of michell. One portion of michell termed head and the other part is termed as tail. Head comprises Na and tail comprises oH and whenever we dropped dirty cloth on water then it encompasses to be clean.

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