The economic power of the military, and their desire to protect their financial interests are the reasons for the coup; and these are the reasons why you have actually had a military government for as long as anyone can remember. Nasser was a military man, Sadat was a military man, Mubarak was a military man, and so on. These are the reasons the military will always try to remain in control. Today, however, their control is conditional upon their compliance with the will of international business.
If the protection of their own stake in the Egyptian economy interferes in any way with the needs of multinationals and foreign investors, the army’s $150 billion muscles will not be able to resist the tens of trillions of dollars worth of economic power at the disposal of the global capitalist empire.
That equation works both ways. The army cannot now do anything against the interests of the global owners of capital, and if they do anything against those interests in order to protect their own power, they will be crushed. The army is only allowed to have the position in government they do, allowed to preserve their stake in the economy, because it serves the neoliberal agenda.
If international business understands that maintaining the military regime actually results in financial loss, Sisi will disappear, and the army will return to their barracks.