Thanks - it sounds like the way jihad has been described in Islam.
But I've wondered about this. Why is it so hard to be good? Seriously.
If this is a question open to anyone I'd like a shot at it.
The concepts of good and evil are largely quantified by what man (especially modern man) feels are unquestionable morals.
We take strong moral objection to rape. It is therefore 'evil'. We take strong moral objection to genocide. Again, 'evil'. We believe that helping those in need is both beneficial and self-edifying. Thus 'good'.
Having outlined that, a possible answer to your question is: The majority of the vices that we enjoy are considered by many to be socially unacceptable. This includes but is not limited to: Being staggering drunk in a public venue, surfing porn for hours and hours. . . and hours, drugs, etc. etc.
The majority of those vices are addictive ones, which by definition would make them 'easier' to do than not. Doing deeds that are largely considered to be 'good' generally either takes time, money, or work. None of those options are overly motivating, while the vices take little, and are garunteed to be instantly gratifying.
A better question would be: How did the original set of morals that lead to the categorizations of 'good' and 'evil' come to be, and who set them?