Would you put whipped cream on jello/jelly? That’s also dairy and features heavily in dessert. Cream cheese is used to make some icing, cheese cake is basically a brick of sweetened cream cheese. So cream cheese also shows up in desserts.
So the person who came up with it was just familiar with how desserts work.
Government workers don’t negotiate for salary, instead they have a set scale based on their job’s pay grade, adjusted for the local cost of living. The lowest level jobs are GS1, followed by GS2, etc. Every GS1 working in the same area will receive the same salary