Term politic is misleading as it is not really about what most people think because what really matters is power and ways to achieve and manage that power. The real politic is what is usually labeled as corruption or in other words "corporative ethic".
And yes politic does matter even in the daily life you will have to deals with it almost every time when you have some kind of interest.

Considering idealism I wonder what is that? Maybe naivete, delusion lie?
all that we have is different interests and power required to achieve our goals.