A corrupt human being can change one vote, or a few hundred if they're very industrious, in a paper ballot system. A corrupt human being can change every vote in an electronic ballot system. I would rather use the system where fraud is difficult and expensive and low-impact.
Corruptible humans will always be in charge, until Terminator. The question is, how much corruption are we willing to put up with, how would we know it is happening, and how robust are the apparatus for correcting those abuses?
Skinware writes the software.
(Is "skinware" the new "wetware?")