Would you work on increasing ad click rate by 0.01% or on playing with cool tech toys and solving hard robotics problem? This is the same as SpaceX being able t

Would you work on increasing ad click rate by 0.01% or on playing with cool tech toys and solving hard robotics problem? This is the same as SpaceX being able to pay under market - what you do matter and people are ready to take paycut to work on intersting problems.