I love this quote I got from the blog, Study Hacks, about the two tasks in your career.
"Core Tasks: The tasks that define how good you are at your job.
Periphery Tasks: The tasks you have to complete to keep your job, but that say nothing about your standing in your field."
Most of us do the latter than the former. Do you agree ?
Do visit Study Hacks. It is a gold mine for personal development :)