You have more risk now. Since you make less and can be put out of work on the whims of others.
I personally make a comfortable amount, and since I have a relatively rare skill set that is in demand, the likelihood of me being put out of work is very low. I also do excellent work, always meet my deadlines, and my customers are always satisfied. I'm extremely unlikely to end up on the chopping block. So I'd rather have a stable, steady income. I do recognize, however, that I am not representative of the average worker in that respect.
But my personal circumstance are a bit beside the point, as you're conflating two things. You're saying that I have less income now - in doing so you're talking about average income. I'm talking about cash-flow.
For example, let's say that I make 1000 per month now, steady and stable, and I have bills and expenses that cost 900 each month, so I've got a tight budget. That leaves me 100 per month to put in savings or spend on frivolous stuff, my choice. But it's stable, so I can get by.
Now let's say that under your scenario, I make
on average 1100 per month... but that it comes in as 1100 in the first month, then 600 for the next five months, then 1100 for several months, then 3600 in the last month. Things for me seem good that first month... but the next five are devastating - I'm 300 in the hole each month, for a total of 1500 behind my expenses. Depending on the circumstances, I could lose my car, my house, my credit goes down the drain.
I don't want the cash-flow risk; lots of people don't want the cash-flow risk. The likelihood of losing their jobs is relatively low. The likelihood of their income fluctuating when it's tied to profit is very high. So unless you can guarantee that the income is going to be very, very much higher than it is currently, I suspect there are a lot of people who aren't going to be willing to take on that risk.