Which of the following is not an aspect of broadly utilitarian reasons for conserving biodiversity?

The narrowly utilitarian arguments for conserving biodiversity include obtaining products of medicinal importance. More than 25 per cent of the drugs currently sold in the market worldwide are derived from plants and 25,000 species of plants contribute to the traditional medicines used by native peoples around the world.The broadly utilitarian argument says that biodiversity plays a major role in many ecosystem services that nature provides (for e.g., pollination, control of soil erosion, deriving aesthetic pleasure, etc.).