The government gave a patent to Edward J.Claghorn of New York City so that others would not copy his invention.
VOA: special.2010.02.09
And they face pressure to make money quickly, before others copy their ideas.
VOA: standard.2010.01.31
While copyright law grants the creator of an original work certain rights including the right to copy and authorize others to copy the work, to make derivative works, and sell and market the work, publicity rights protect the subject of the work where the subject is a famous person.