SITG is a type of vested interest and accountability. It's when you are impacted by your effect on a game that you impact. Using Trump and the field of plumbing as an example, let's say Trump signs a bill that impacts plumbing in the US. His skin in the game is for a different game other than the production and consumption of plumbing. His skin in the game is something along the lines of how signing the bill impacts his approval ratings (and other stuff). This tells us that Trump should have virtually nothing to do with plumbing policy because his SITG is for a different game. Using the SITG hypothesis, this means that Trump is liable to get things that impact plumbing wrong more often than people who have SITG regarding plumbing in a direct manner.