I generally don't worry much about information. I'm not in the systematic space though and I'm happy to tell almost anyone what my views and my positions are. It's a big market and I don't matter that much Smiley
People leaving your company will always have all the important bits in their head anyways, so information security isn't going to affect your main risk of information leakage materially as I see it.
In principle it's very hard to create a setup where the client of information doesn't "have the information". As long as it can be displayed in unencrypted form somehow on the client, there tends to be some way of extracting it for unencrypted storage as well if one puts ones mind to it.