Wrong, you can still earn bitcoins if you have the ability to serve the community with your creativity such as content creation service, signature creation and other service.

Joining a bounty program also allows people to earn bitcoin only if the altcoin project they support is successful and participant are paid in token or coin which can then be converted into bitcoin.

Actually the OP's question have been answered quite often by the public and almost every day I see the same question lately. In my opinion, all the suggestion that have been answered are very good for the OP to learn, so there is no need to tell further. That would be very confusing.