(continued)
now think of the scenario, you are a politician and you are elected by the votes of workers which you dictate the salaries,taxes and all related stuff..
even if the system was like a thermodynamically isolated closed vessel and the only factors are those (which is not the case actually) still you cant easly bypass those factors and decide within the laws of economics and go for cuts..
second; you will need to finance and support (very detailed subject) your party in which you will need serious amounts of money and other things that the poor masses cant help you in which case you need the supoort from rich classes that wont give you even a chewing gum without any expectation..

now consider the scenario that all delegates and other members in the party have many people-relations around them which expects some promises to be hold..
Considering those network of relations , your hands even before you become elected already tied up .. :-/
Now to complete the picture , the final episode ; the highest level of priority which is international powers and historical relations with them.. As a country having a past you belong to either this side or that side of the powers of the world..
rules are written before you and neither you nor the others after you cant change without living really serious ill effects including wars..

now, taking into consideration all these factors, do you believe (even if you are clever enough) you are free to govern the country how you want.. :-/
My answer is; I dont.. And of course in reality the deciding classes (not only at the national level) manipulate the political life so that there is no chance that the masses can freely elect who must be .. in fact its just a theatral tv show that we watch and believe we are living in democracy..