Who has the more power, the 70% shareholder in the business or the the person to whom he has given the power of attorney to, who has a 25% share in the business?
The 70% shareholder ... because a power of attorney can be revoked by the donor until the donor dies, or loses the mental capacity to execute a revocation.
The 25% shareholder's "balance of power" is therefore held subject to the ongoing acquiescence of the majority shareholder.
In other words ... the 25% counts for Jacques Merde.