I would guess two work are two good things cross-purpose a bit. They would want good targetting data quality which homogeneity helps but a heterogeneous set of

I would guess two work are two good things cross-purpose a bit. They would want good targetting data quality which homogeneity helps but a heterogeneous set of intrests is worth more to advertise to as more potential demand for the same share. Teenagers and young were long favored for television advertisements not because of having more of their income disposable or long term loyalty (although nice bonuses) but because they were less set in their ways. And influencing is always what they sold.