Do conductors matter?

The age-long debate on the importance of the conductor has been put to the test. A New York orchestra set up on a street corner with a sign saying "Conduct Us". The hilarious results were captured in this film:

Ensemble ACJW, a joint venture between New York's Carnegie Hall and The Juilliard School of music, perform Mozart's The Marriage of Figaro. Isn't it fascinating to watch the changes in the sound as random conductors take to the podium.
Does it make you want to have a go? I think there is a closet conductor in all of us  :-)