PR pros and cons

I am still really new to the PR game and I can already tell you, that if you do not believe in the company or person( the product) then it will not sale. I am working with a small business and I am getting the opportunity to go in and look at all of their advertising outlets and totally reconstruct and help re-build. The really great thing about this is that I am so passionate about the people behind the scenes and how hard they work that I get so inspired to be better and to really help. Being behind the (product) that you are pushing is the #1 factor, you both have one common goal and thats to grow. No one can really bicker about not wanting to grow when the opportunity is staring you right in the face. That's one reason that I really want to get involved with Artist (rappers, musicians, dancers etc...) because it's their passion that motivates me to be better. If someone is going as hard as they possibly can to get ahead, but they just can't reach it alone why shouldn't I be the one to render my services to them so that we can both continue to strive for excellence. Do You Think PR is just a spin or very beneficial to the entertainment industry?