[kazinator]

That's hardly the case.

Firstly, examples of governments that have any people voted in at all are cherry-picked. Around the world, there are governments that are not voted in, or are "voted" in by a sham process which only has the external appearances of democracy.

Secondly, in democracies, a fairly common pattern is that the government consists of some seats that are voted in (parliament) plus some that are appointed (senate). The power is divided accordingly. (A minor point is that it is not uncommon for the leader of the elected party to appoint people for the uppermost staff positions: a so-called "cabinet" or whatever.)

Thirdly, government in the broad sense includes not only the parliament and senate political structure but all of the institutions of the government that actually get various things done throughout the governed region, and all the levels of bureaucracy employing large numbers of people. All of that staff is not elected; they are just people hired into positions and they generally keep those positions across government changes. That bureaucracy has considerable power of its own; not every single decision they make which affects you goes through a parliamentarian that you elected!