Just ten years ago, what difference could you possibly be expected to make?
How could you make music without getting picked by a record label, or help the local community garden more than showing up on Saturday to pull weeds? How could anyone expect you to change a conversation, or raise enough cash or move the needle more than a little?
Today, armed with Mailchimp and Indiegogo and Vimeo and Meetup and a dozen other nearly free tools, you can make quite a ruckus.
You can organize a hundred or a thousand people and get them in sync with a weekly newsletter. You can tailor goods or services or a cause to a small group of people that really want to hear about it and really want to spread the word. You can self publish to your thousand true fans, you can host an event or a dozen events, you can enable your work to become famous to the crowd that matters.
If you care enough.