I think the content creators and the investors are exposed to slightly different risks. If the EIP experiment fails and behaviour does not change, content creators will be worse off in regards in tokens and this could result in some of the more talented content creators leaving. If Steem loses talented people or even those with average ability, that will hurt investors as less people will want to use the Steem. Less people using Steem will cause the price of Steem to fall in respect to other crytopcurrencies. As investors have the most Steem, they are hurt the most by a fall in price.

There is also advertising revenue to consider. Steem DApps will be more attractive to advertisers if there are more people using the DApps. So the success of the EIP should be impportant to investors. What is the point of holding more Steem if it can't be eventually sold at a good price?