Nature doesn't really need help beautifying itself to be appealing to general population. By this I mean nature is intrinsically beautiful at at least some point. Nature is also large enough that when experienced by the individual, it will overwhelm them. Because of this, the only difficult in showing people the form of nature that Leopold recommends is simply getting people out into the wild. This exhibit did a good job of simulating an actual temperate environment, and thus provides that overwhelming feeling that nature can have while not being intimidating. When I went, there were a few younger children there. If I were to describe their reaction it would be childish. Like kids. Because they're kids. The younger you are the more receptive you are to new ideas, and getting kids interested in the outdoors when they're younger is definitely beneficial to create a generation of individuals who'll treat wildlife ethically. As always, being outside stirred up feelings of love for nature, so I would say yes the museum did instill an ethical responsibility to nature.