In my opinion, getting a big injection of VC money doesn't make it alright to turn up your burn rate a significant amount.
I have never been through a round of funding, but it would make sense to keep your costs down wherever possible. A founder who just got a round of funding should be thinking on ways to increase the value of the company instead of their salary.
I would like to know what is the norm in VC backed startups. Are there significant pay raises or bonuses after a round of funding? Do the founders and the employees share the wealth? Or are things kept fairly similar to the status quo.