Why not? Employment can cost a lot. They have 2.5k employees so the base of the estimation is $600K on average. Even if you don't count their equity compensatio

Why not? Employment can cost a lot. They have 2.5k employees so the base of the estimation is $600K on average. Even if you don't count their equity compensation, their base salary is known to be best in the industry ($250K~$500K?) so $600K makes sense since then the real cost of employment include other various stuffs other than just cashes.