Kaka does not feel Real Madrid paid over the odds to take him and Cristiano Ronaldo to the Bernabeu - despite the duo costing in excess of £130million.
Echoing the thoughts of Ronaldo before him, Kaka believes both himself and the Portugal international are worth the huge transfer fees Madrid have splashed out on them this summer.
Madrid paid Manchester United a world-record £80million for Ronaldo, while the price to persuade AC Milan to part with Kaka was reportedly £56million, making the two most recent winners of the FIFA World Player of the Year award the most expensive signings in history.
When asked if he thought the money Madrid had spent on the pair was immoral, Kaka told Spanish newspaper Marca: '(The reason) that Real Madrid have decided to pay so much money for us is because we are worth it, isn't it? Because we've shown it with our football over the last few years.
'We are in a sport which pays these kinds of figures and within this sphere it could be that we are worth this investment.
'In the case of Cristiano Ronaldo, who is the most expensive player, he has shown that he's number one and that he's worth this money.'
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Kaka insists that being one of the costliest players of all time will not be any sort of millstone for him.
'To tell the truth, I'm very happy to know Real Madrid paid all this money to sign me,' he said. 'It's not a form of pressure for me, but a responsibility. But in no way is it going to create a negative effect - just the opposite.
'I think it's something that is going to motivate me even more.'
Ronaldo and Kaka are not the only new faces at Madrid this summer.
Former Lyon striker Karim Benzema and ex-Valencia defender Raul Albiol have been brought in as part of a spending spree that has already reached almost £200million, with the distinct possibility of more big-name arrivals to come.
There is also a new coach at the helm, with Manuel Pellegrini having been brought in from Villarreal as the replacement for Juande Ramos.
Pellegrini failed to win any major trophies during his five years at El Madrigal, but he built himself an impressive reputation and Kaka believes the Chilean will be a hit at Madrid.
'He's a coach who I like. He did a spectacular job with Villarreal and if he's at Real Madrid it's because he's earned it with his effort and dedication,' the Brazil international said.
'He achieved great things in Europe and we knew him well in Milan, because he knocked Inter out of the Champions League.
'He's a coach who gave Villarreal a very nice style of play and I'm sure that at Real Madrid he will try to do the same as with his previous team.'