[jeffrallen]

And then when someone asks for help with a legacy system say, "let's look at the docs together and I can help you take care of that yourself so you are not depending on me".

Not all will react well to that, but those who are also looking to grow in the org will see there is an opportunity to grow some valuable expertise, with you as a mentor.

[trzeci]

This is a very good advice - and helped me a lot to survive for these 8 years here, also it's a very good opportunity to increase the network of connections inside big organization - which is good also.