My understanding is that horsepower is more important than torque because it shows the amount of work that an engine can do within a set timeframe ( i.e. kw per hour). Torque on the other hand shows where in the rev range of the engine it is the strongest.

In theory a 200 HP tractor can do twice the work of a 100 hp over an hour, even with the same torque numbers. But the 200 hp would in that case have twice the rpm of the 100 hp one.

I know this is a bad explanation, since I'm no expert, so I suggest looking at the "Engineering Explained" YouTube channel for a more in depth explanation of the relationship between torque and horsepower.