Politicians are all "corrupt" in one way of another. It just a
matter of how "corrupt" it is.
Even if there is a party like what you mention, there will be
temptations from Day 1 when they took power, how long can they
sustain? Even if they can sustain that moral characters of theirs,
can they be good leader who will not waste the nation wealth we
have painstakingly accumulate over all these years?
Just take our next door neighbour, the country was pretty corrupt
but it was stable, but after he was toppled, the country is still
as corrupt and with the added instability within their own
country.
To talk about morality during election campaign is nothing more
then propaganda. Just like Miss Universe Contest, the standard wish
that each contestants will want if they have one wish when ask will
be "World Peace", but after they are crown, how many of them really
help put in a gram of effort in this so call world peace? Instead
they are swimming in their victory and prizes as the winner of Miss
Universe.
Unless this world goes back to stone age, i doubt there will be any
so call high moral politician who is holding office around.
It all about propaganda which will only last as long as the
election is not over.