On other kinds of hostages – Amos Harel in Haaretz:

‘The hopes of the hostages' families are focused on two individuals connected with Trump: the president's special envoy to the Middle East, Steve Witkoff, and American-Israeli billionaire Miriam Adelson, Trump's biggest donor in the presidential campaign last year.
Witkoff demonstrated a great deal of humanity in his meetings with the families, and his personal story (he lost a son to fentanyl addiction) created a special closeness between him and the hostages' parents. Adelson conveyed messages from the families to the president himself and helped get him to see that, in contrast to the misleading picture that Israeli sources gave him, about half the hostages are still alive (so there are still many to save).
The families' message to the president: getting the hostages out of Gaza takes precedence over renewing the fighting. Resuming the war will almost certainly mean the deaths the remaining hostages, because particularly intense warfare is planned this time, along with a siege on parts of the Strip. The hostages, who are in dire straits in both body and mind, will simply not be able to survive in the conditions of their captivity for much longer.
Witkoff and Adelson are displaying greater concern and responsibility toward the hostages than the person on whose watch they were abducted. Netanyahu is occupied with his fate, with the critical need to keep his government alive, while attempting to delay the verdict in his trial for as long as possible.
(…)

‘Trump's sharp turns are putting stress on the Arab world. Jordan's King Abdullah II, who found himself in a White House press conference this week, looked almost like a hostage himself next to Trump (though the king's eye tics are nothing new). At the end of the month, a summit of Arab heads of states is planned, one of whose goals will be to present an alternative to Trump's emigration ideas for Gazans.’

Read the article here.

We could say that quite a few politicians (or kings) are hostages to Trump.
But the master-servant relationship is seldom stable.
The hostages will free themselves, or they will become happy servants, happy enough servants.