Making a Career out of Music

First off, this is really cool and thank you for your time.

Here's the question:

Talking about making a career out of much of it do you think is luck and how much do you think is about hard work and perseverance? Will the most talented always rise to the top? Or is it more about who you know/the connections you have?
I heard that's it's your connections that get you there faster but then again having mega talent or skill ain't bad either.