At one job, I do not have the privilege, onus, or whatever of offering incentives for your participation. I may or may not persuade or convince you to participate in a survey with me. You may swear at me so loudly that I have to hold a hand over an ear for awhile before resuming my work. I may utilize a few or many tactics when attempting to persuade you to participate today or in future. For all I know, you agree so quickly because you are the mystery shopper of the moment who is paid to evaluate my work.
I get paid. Someone gets information. Decisions [good, bad, or otherwise] may be made based upon the aggregated data.
Does it matter to anyone whether your life may be impacted via a policy or legislative decision that is based at least in part on aggregated data? If so or if not, you always have the right and designated methods to express your views for your government's consideration. As far as I know, you do not get paid for expressing yourself to your government representatives-- unless you are a duly registered lobbyist or their friend, relative, or associate who gets a little somethin' somethin' later...
Nature does not hurry, yet everything is accomplished. - Lao-Tzu