It depends what you want to do for your career, much better to be a happy ag pilot than a miserable airline pilot.
Be careful though of thinking you can use ag flying as a stepping stone to build hours and make some money before moving on up the ladder. Once you're in it can be difficult to get out as the skills are very different to passenger operations, low level VFR single pilot versus instrument flying multi crew CRM and SOPs.
I knew a couple of ag pilots who are now left seat on wide bodys with major airlines but they are very much the exception.