"Contact owners will benefit from their contact details being uploaded" So how can I control my benefit, I think it is not clear.

yes it does look that way. ICO currently makes all investors prefer to invest on ICO rather than bitcoin. so the spread of investor capital also makes the bitcoin volume weaken. but it does not completely kill bitcoin, because until now bitcoin activity if bitcoin rise high, even some ICO also can be paused or delay.

I think it is the other way round. Will the fiat currency, will the banks survive when bitcoin starts gaining its popularity and main adoption? Bitcoin can have all the features that fiat has but not the other way round.