It's just the opposite.
Let's say you write for $10 a page. To make $500, you'd need to write 50 pages, right?
So a marketer comes along and promises you a 100-page order - but they want a discount to $5. You're going to write TWICE as much content for a much lesser amount. ANd it's going to take you TWICE as long.
Don't see "100 pages" and get all dreamy eyed. Even if they're willing to pay $7 per page and you'd wind up making slightly more, ($700), let it all boil down to the per page rate when you make a decision.
You're better off working hard to drum up more $10 per page business in that spare time than letting a $5/page marketer gobble up all of your days.
I remember I had a client who always emailed me promising on-going work, but he was so cheap - always wanting to pay much less than anyone else. Initially, I saw it as a perk - kind of an exchange - like job security for cheaper payment.
But if you get out there, you'll find there are SO many marketers willing to pay top rates (not this $1.25 to $5 crap) and you can fill your schedule with those buyers who appreciate quality.
But like ANY other IM endeavor, you have to spend time BRANDING your business and getting buyers in the door