The issues are never as simple as you think they are, the value of a company by itself has little bearing on how many staff you hire, you hire the minimum number of staff required to efficiently operate under normal circumstances. When sudden demand for services occurs, you can't just snap your fingers and add more staff on the spot just because you have a lot of money. Valuation doesn't equal profitability either.
And you also should now that GMs and support staff are often minimum wage jobs or close to it. I work in a grocery store. Our pay rates have increased several dollars an hour over the last year and we still have 2/3 of the staff we need. We WANT to hire more people but people aren't biting. And it's clearly not because of pay, we pay more than most other businesses in the area. Nobody wants to work in customer service, and its in part because you're mostly dealing with angry people (ahem) all day- after all most people don't call into support because they're having no problems and just want to wish someone a happy day.
They probably ARE hiring more people, as at least part of this player influx is here to stay. But it's going to take a while.
All that said: If you don't have access to the email associated with the account, you're going to have a bad time getting back into it. You may be better off starting a new account. But growth is so vastly faster in the game now than it used to be that it will actually take a shockingly short amount of time to make up for the lost progress.
You will need to have other means of providing proof of ownership of the account to get it back without access to the email you signed up with.