Meat would just incinerate upon entering Earth's atmosphere. He wouldn't even exist after going through something like that.

The One Being, we know next to nothing about, but he was defeated by the Elder Gods, who seriously seemed pretty pathetic (in comparison) when they empowered Raiden.

Superman is pretty much a god, hence the title 'Injustice: GODS AMONG US'. He's stronger than Wonder Woman, who has been given powers by literal gods.

You're seriously overestimating MK and underestimating DC.

The DC Universe is much more vast than Mortal Kombat's. It's not a bad thing that MK doesn't have characters that are as powerful as DC. It's what gave the once great story balance. If MK had a Superman, then Earthrealm would never have any problems. DCU has characters that are just infinitely more powerful than MK, and by extension, the "gods" in DCU are stronger than those of MK. The One Being may be all of Mortal Kombat's reality, but that isn't much compared to DC's... six realms compared to a multiverse.

I'd pay to see Gorilla Grodd vs. Goro on a Gary Shaw PPV with the co-main event being Kimbo Slice vs. No Good Jobber lol

Whoa, stop here!
There is WAY more than 6 realms!
Each realm itself is neverending, has an open void full of more characters stroger than concieving, possibly the Elder Gods themselves. The only reason the Elder Gods looked so weak is because
a) Shao Kahn is immensely strong. HE's wa stronger than you think.
b) They were in Earthrealm- not The Void or the Heavens. Any place other than there, they are considered Mortal.

Now, on to further discussion about the One Being- he wan't defeated by the Elder Gods. The Elder Gods broke apart his psyche into fragments that made the Realms, which you can find a list of in the MK General forum. Literally all of existence is just a dream of the One Being.
That's saying something.

They defeated him. If they didn't, they couldn't have done what they did.

Give me a source to verify anything of what you said, that Mortal Kombat's reality is just a "dream" of the one being. Or that there's more than six realms. Or that they stretch on infinitely.

You haven't given anything to support your claims. I've been repeatedly giving you examples to show how much more powerful DC is than MK. All you've been doing is making claims with no foundation.

Mortal Kombat cannot compete with DC in terms of power. That's all there is to it. It's not a bad thing. They're too different ideas, and both have great stories and characters. Not every IP needs characters with the power cosmic to be interesting.

Look at the names of the two games:
MORTAL Kombat
Injustice: GODS among us.

It's right in front of your face. Just because Mortal Kombat has physically weaker characters does not make it any less of great IP.