Comment by zupatol

Politics is not a zero-sum game. When parties discuss with each other they have a chance of all furthering their agendas to some extent, and have all parties mostly support the compromise.

It's also the case that if a party campaigns strongly one subject and win votes with that, its ministers will tend to get the ministries that allow them to implement their ideas. So if you're tough on security you might get the police, if you're a fiscal conservative you get finances. It's more complicated than that, but the longer they stay on the bigger the chance they end up where they want.