It takes no effort to be cynical, I can tell myself "everything sucks and I shouldn't care because nothing matters anyway" and justify not doing anything I want. I can justify not voting, I can justify not helping someone if I see them struggling on the street, I can justify not even improving myself.
In the last couple years I have been trying my best to override my cynical tendencies because ultimately I think that they are bad for me. I vote in every election I am able to because even if it's infinitesimal, I at least tried to do something to avoid whom I deem bad people getting into office.