A common criticism of Avengers: Endgame is that the Avengers didn't bring back Tony and Natasha at the end like they did with Gamora. This criticism is stupid because they aren't looking at if it's ethical to do it.
The reason why they let Gamora stay is because she helped them defeat her Thanos and she wouldn't have a home to go back to (not because of the TVA because Loki seasons 1 & 2 and What If...? seasons 1-3 are technically concurrent with Endgame since they take place outside of time). It is a matter of ethics to bring people into the present of the Sacred Timeline. Bringing Tony and Natasha into the present would take away the meaning of their sacrifices.