You don’t get to take your work away after you change your mind

In the world of software, you actually can. Doesn't mean you should, but the option is there legally for (in general) good reasons. EDIT: for example, a project could make you accessory or compulsory to a crime if the code you contributed was distributed to a jurisdiction where it is illegal, see DMCA, cryptography exports, etc.

Same as in the world of arts. There was a famous case in... I think Mexico? where some theatre artists's portrayals and renditions of characters were reused without their authorization in a campaign to defame HIV victims and the LGBTQ population in general.