I believe that certain types of game-play that are generally relegated to multiboxers or close-knit trusted groups would become much more prevalent with some advanced economic features.
Example 1
Imagine a moon mining operation. There are many players mining this moon. A hauler player collects the cans that the miners jettison.
Option 1: A contract is signed by the miners to the hauler wherein the hauler will automatically pay a select sum per ore gathered from a jet-can.
Option 2: The miner pays the hauler a select sum per ore or M3 hauled to station for them.
Example 2
Imagine a large Alliance. They are engaged in warfare with another similarly large Alliance. They want to incentivize their members to achieve tactical objectives in this war.
Option 1: For every 10 isk that is destroyed in property damage to the opposing Alliance, the player’s Alliance automatically pays 1 isk to them.
Option 2: The alliance can input criteria as to the circumstances of a ship’s destruction, and criteria onto the fitting of that ship. If those criteria are met, then an automatic SRP payment will go towards that player.
Obviously, these things can already be done. But, the possibilities for profitable gameplay would increase as a result of these advanced contracts. With less effort required by the employing entity, interesting play-styles might become real professions.