Speaking to Kicker, the former Bayern Munich CEO - now serving as a member of the club's supervisory board - criticised the current balance of power in the transfer market.
Rummenigge, who spent 19 years at the helm of Bayern, drew on his extensive experience in transfers and contract agreements to warn that clubs risk undermining themselves if they yield too easily to agents' demands.
Rummenigge's comments reflect a growing concern across the sport about escalating player wages, excessive commissions, and the role of intermediaries in shaping transfer deals. He argued that giving in to such pressures could lead to financial instability and disrupt squad planning.
While acknowledging that agents can play a legitimate role in representing players, Rummenigge stressed that the ultimate authority must remain with the clubs.
"I view the increasing power of advisors and agents, as well as players, with skepticism," he told Kicker.
"Clubs and associations must retain control. Advisors and players must know where their boundaries lie. These boundaries must not be shifted, otherwise the entire system will be thrown into disarray. I view this development with concern.
"Every club has a responsibility not to let agents become too powerful. You have to show strength."
Bayern Munich have been chasing VfB Stuttgart striker Nick Woltemade all summer, but with talks stalled over his valuation, Stuttgart have set a firm deadline for a deal before their DFL-Supercup clash this Saturday.
Kingsley Coman, the dynamic French winger, is poised to leave Bayern Munich for Saudi Pro League giants Al-Nassr in a high-profile transfer.
Bayern Munich have ended their pursuit of VfB Stuttgart's rising star Nick Woltemade, with the German giants confirming they have stepped back from negotiations.
Gianluigi Donnarumma, a Ballon d'Or nominee for his stellar displays with Paris Saint-Germain, faces an uncertain future as Manchester City, Manchester United, and Bayern Munich vie for the Italian goalkeeper's signature.
