The product lead is responsible to find the overlap between
1. Business: where does the leadership want to go/where to make money
2. Users: what do users want/what needs do they have
3. Tech: what can/makes sense for you to build and is it possible/with what effort
By that definition, you will always be in a compromise of all those. The more you can create an overlap, the better. However, it's pretty sure that non of those will be 100% overlapping.
What the PM then needs to do, is to find where there is the biggest overlap and ROI-effort-ratio and hammer that home.