Saidar is a privately owned transport company that secured the rights to operate public transport in Sabin City for the next four years, extendable by another four years, through bidding a few years ago.
The official explanation for the four plus four-year contract is that if Saidar Company does poorly in the initial four years, the subsequent four-year contract won't be renewed.
But in reality, this contract is determined by the Federation President's term. Each president's inauguration and re-election aren't solely personal matters but affect the entire Federation Government's upper echelons.
The ministers selected by the President also choose their desired deputies. This is a complex yet straightforward process, fundamentally a matter of allegiance.
Perhaps initially, many people did not realize that becoming President could yield benefits beyond power, but now people know that includes wealth.