We throw away a lot of food a year. So what if I snatch some meat out of the trash?
Are you so desperate to not eat tofu ever in your life that you are willing to pull bacteria-laden room-temperature meat out of the dumpster? I admire your perseverance but truly pity it at the same time.
If meat is being thrown away, that's probably for a reason. And if it has sat in a dumpster for even hours, this sounds like more of a directionless science experiment than a sustainable lifestyle.