I feel like the difference is that companies are generally intended to be a concerted effort of one or more individuals, as opposed to an actual roll of the dice.

Like without getting into nits, you can actually directly effect the direction and value of a company, but you can't affect the roll of dice or the output of a random number generators.

Risk in and of itself doesn't imply the entire thing is gambling; that said, investing by itself would be way closer to gambling in that context, imo

Are you being sarcastic? I said it is not a human right - no one should guarantee anyone the ability to start a business as it isn't societies responsibility to pay the cost of some individuals risk tolerance.

I'm saying the opposite of what you seem to be implying. I'm saying anyone can gamble or start a business, but it's no ones responsibility to make sure they have the option to do so.