The ‘big tradeoff’-Fundamental law or ‘red herring’?

The indifference curve and the idea of tradeoffs and substitutability of products limited budgets is almost the essence of economics. There is a need for more imaginative thinking as to how budgets can be expanded or how one can achieve multiple goals within a fixed budget. There may especially be a need for more imaginative thinking on how increases can be achieved on both societal equality and efficiency simultaneously.