Bounty hunters make good money precisely because few people do it. I think if all the unemployed became bounty hunters, the bounty fee would be very low.
It is already low right now. It is almost not worth it anymore, there is maybe a few bounties worth it. I dont remember when was the last time i got something meaningful out of a bounty campaign.
You are right. its not worth it anymore. i think for now if you have like - hero/legendary account then you can earn .