Every factor must be weighed. Suppose a candidate buys conservative support by telling voters he is against gun control and expanding abortion rights, but votes to impose socialism on the country. Socialism has a lot of blood on its hands at least in countries where it was able to fully mature, almost as much as the number of babies that have been aborted in the US since Roe.
see:
DEMOCIDE:
MURDER
BY GOVERNMENT
http://www.hawaii.edu/powerkills/MURDER.HTM
That never happens.