If you believe your position is significantly more secure than an investor you are deluding yourself.
If a company is solvent it must pay its employees, but as a company goes bankrupt it will fail to do so. An attempt to retain employees with promises will ensue, but if it should fail you will usually get in line with the rest of their creditors. In some cases you will get priority over cash only creditors, but you should realize that the company has few assets at that point, and those will be leveraged, so your recovery is likely to be very small compared to what they owe you (a serious suggestion if you find yourself in this position is to TAKE THE DEAL THEY OFFER or negotiate something else immediately.)
Large companies with a good revenue stream are usually secure (until a startup destroys their revenue, which is nearly inevitable due to cost inflation in running a mature company, but takes quite a while.) Startups are mostly run on promises of success, but usually those promises go unfulfilled. When they are it means lots of money though, which is where it balances.
I will end this with much the same thought I started it with. You are not much more secure as an employee than an investor or officer, they just pay you better and you are not aware of how close it comes with great frequency. Knowing how close it comes is worth a lot of money as it turns out, as it is extremely high stress... and sometimes you put your own money in to keep it going for the moment.