Parliamentary committee memberships are always big perks because of the "sitting allowances". (Imagine getting paid to do your job and then getting paid again if you actually show up and do it!) And of those, there are none sweeter than those that suggest involvement with foreign countries.
Remember the "ICC letter" that supposedly had polished British diplomats writing things like "in right of ..."? Gichangi took one look at the River-Road joke and laughed at being asked to confirm its authenticity. The MPigs summoned him two or three times; he ignored them. So, what did they do? They decided that their investigations would have to extend to those countries that were supposedly behind the letter. Trips to the USA, the UK, the Netherlands ... And there ended the matter. I don't think there was even a short "trip report" on anything.