Since red light cameras do not reduce accidents or free up officers, why would cities put them in?

The City of Seattle ran a 10 month pilot program that generated $900,000 in revenue, even though only 70% of the people actually paid the ticket. The City declared the pilot a huge success and is aggressively expanding the number of intersections with red light cameras. Their report also stated, "There is little evidence that cameras have decreased the frequency of all auto crashes or of the more dangerous angle collisions".