One of the ways we twist the meaning of collaboration is how we define sacrifice.
If you’re on a project team and a specified material you are responsible for installing on the project is going to cost more than originally estimated, you ask the team to let you ‘slide’ and use an inferior material. This empowers others to want the same treatment at some point and this behavior becomes a “tit for tat” cascade and degrades the project.
This is sacrifice alright. Sacrifice of someone or something else’s interests. In this case, the project’s interests. Not our own.
BEING collaborative cannot exist without sacrificing your own interests.