you should take seriously the bounty campaign because its your source of income, it is a job which you are responsible for the tasks assigned on you. if you didnt take it seriously, and didnt finish the tasks assigned on you, you are not worthy for doing bounty campaign.
Considering Bounty Campaigns as a work should be enough to take it very seriously. A person is given a task to be accomplished, and a quota to be met within a specific period of time. Unless that person does not want any source of income, only joins in Bounties but does not really participate, that person just wastes his efforts.