[biztos]

> asked by my manager not to give talks

This is really missing some context: were you asked to not give the talks because of their content? Were you denied budget to go to the events, which would be a completely different thing? What reason did your manager give for the request?

As a general point, you should consider what your manager wants to achieve, and to the extent it doesn't contradict your own goals or ethics, help them achieve that. If no such alignment is possible, CTRL+ALT+DEL.