Not talking about Ethereum or any other crypto in specific but I do think the blockchain tech might have other usefulness - like making voting records public behind a cryptographic wall, for example - this would help make voting transparent and verifiable. When it comes to money, yeah only-bitcoin and nothing else.
Discussion
You really can't make voting records transparent if you control all the voting process, including the issuance of the voting permit itself. Look at what happened in Venezuela.
For me, in general smart contracts are fool contracts. In the moment you introduce an admin or oracle, they are as corruptible as any other human contract.
Of course, no system is perfect. But ones are better than others. I would rather try figuring out how to use cryptography, private/public key, and auditable blockchain tech to try and make voting as privately as possible for the individual but as public as possible for the result verifications. I think the best shot at that is something pertaining to blockchains rather than keeping with the old system which is highly corruptible.