Ethereum was selling ETH tokens used to pay for smart contracts on the platform.  It's true that the platform wasn't built till later, but Vitalik Buterin had a fantastic reputation for contributing to the Bitcoin community and for his technical competence.  If someone believed that Ethereum would later become a success, then the value of ETH would rise accordingly as the "fuel" of the platform.

These "Mycelium tokens" have no use outside of speculation/donation.  There is little reason to think the wallet will make a profit, but even if it does, there is no reason for the value of these tokens to rise accordingly.  If there was a direct tie between profits and dividends, then there might be a thin thread connecting the two, but I didn't see any.