It's more of "this direction seems higher ROI than that direction", in particular quality vs quantity of data. Already in 2018 SenseTime reported that for face

It's more of "this direction seems higher ROI than that direction", in particular quality vs quantity of data. Already in 2018 SenseTime reported that for face recognition, clean dataset surpasses accuracy of 4x larger raw dataset. https://arxiv.org/abs/1807.11649 https://arxiv.org/abs/1807.11649