Yes I see what you are saying, but I am talking about something a bit different.
One, it is not limited to public sector finances for a start.
Two, when an economy is growing, that is, the value of what we produce in goods and services, our outputs, is growing at a faster rate than the cost of the inputs, costs of productions. This creates wealth. I am talking about how best that wealth is shared throughout the economy. To my mind, the concept of trickle-down (or trickle-up, as I prefer) economics leads to a disproportionate amount of this wealth lending itself to capital over labour. This is bad, as instead of actually trickling down, this new wealth is spread through the economy in the form of credit expansion (the pressure is on the Central Bank again to loosen limits on mortgage-lending). This is not good, preferably a greater proportion of any newly created wealth should distribute via wages increases. This ensures a greater spread, greater participation in the workforce, less reliance on welfare etc.